01272nas a2200229   4500008004100000022001400041245012000055210006900175260007400244300001200318490000800330520044000338653002700778653002200805653001200827653000900839653001200848100001500860700001900875700001600894856013200910       2006                        eng d  a1381-116900aGreen protocol for the synthesis of N-oxides from secondary amines using vanadium silicate molecular sieve catalyst0 aGreen protocol for the synthesis of Noxides from secondary amine  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR   a109-1120 v2483 a<p>Vanadium silicate molecular sieve catalyst VS-I was found to promote efficiently the oxidation of alpha alpha,alpha'alpha'-tetrasubstituted secondary amines with 30% aqueous hydrogen peroxide as oxidant. In comparison to other catalysts reported to date, this heterogeneous catalyst offers a remarkably simple workup procedure and is reusable without any appreciable loss of activity. (c) 2005 Elsevier B.V. All rights reserved.</p>10aheterogeneous catalyst10aHydrogen peroxide10aN-oxide10aVS-110azeolite1 aPhukan, P.1 aKhisti, R., S.1 aSudalai, A.  uhttps://library.ncl.res.in/content/green-protocol-synthesis-n-oxides-secondary-amines-using-vanadium-silicate-molecular-sieve-001884nas a2200253   4500008004100000022001400041245011800055210006900173260007300242300001200315490000800327520094000335653002301275653002301298653002701321653002301348653002101371653002401392100001501416700001901431700002401450700002801474856012801502       2006                        eng d  a0926-860X00aTransesterification of cyclic carbonates with methanol at ambient conditions over tungstate-based solid catalysts0 aTransesterification of cyclic carbonates with methanol at ambien  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcSEP  a108-1140 v3123 a<p>Dimethyl carbonate synthesis with 80 mol% yield is achieved through transesterification of ethylene carbonate with methanol at ambient conditions (RT and atmospheric pressure) using alkali and alkaline-earth tungstates as solid catalysts. The catalysts are efficient even at the sub-ambient temperatures. Reactions under CO2 pressure indicate that CO2 atmosphere retards the transesterification reaction completely below 100 degrees C. Experimental conditions of 150 degrees C and 3.4 MPa CO2 pressure are required to obtain maximum DMC yield of 71 mol%. Synthesis of DMC by one-pot synthesis using epoxide, CO2 and methanol is not as effective as that by two-step method with the present catalyst system. Raman and IR spectra of methanol-interacting tungstates indicate the formation of a methoxide ion species adsorbed at the catalyst surface as one possible reaction intermediates. (C) 2006 Elsevier B.V. All rights reserved.</p>10aDimethyl carbonate10aethylene carbonate10aheterogeneous catalyst10aRaman spectroscopy10asodium tungstate10atransesterification1 aSankar, M.1 aNair, Madhavan1 aMurty, K., V. G. K.1 aManikandan, Palanichamy  uhttps://library.ncl.res.in/content/transesterification-cyclic-carbonates-methanol-ambient-conditions-over-tungstate-based-001037nas a2200253   4500008004100000022001400041245006800055210006500123260007300188300001000261490000600271520019600277653001100473653001700484653002300501653002700524653001600551100002200567700002200589700002300611700002500634700002700659856009700686       2007                        eng d  a1566-736700aEfficient N-arylation of amines catalyzed by Cu-Fe-hydrotalcite0 aEfficient Narylation of amines catalyzed by CuFehydrotalcite  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a65-680 v83 a<p>An efficient N-arylation of amines with aryl halides in presence of heterogeneous recyclable Cu-Fe-hydrotalcite catalyst has been developed. (c) 2006 Elsevier B.V. All rights reserved.</p>10aamines10aAryl halides10aCu-Fe-hydrotalcite10aheterogeneous catalyst10aN-arylation1 aJadhav, Vinod, H.1 aDumbre, Deepa, K.1 aPhapale, Vilas, B.1 aBorate, Hanumant, B.1 aWakharkar, Radhika, D.  uhttps://library.ncl.res.in/content/efficient-n-arylation-amines-catalyzed-cu-fe-hydrotalcite01297nas a2200265   4500008004100000022001400041245011300055210006900168260007300237300001200310490000800322520031500330653002100645653002000666653002700686653001800713653002400731100002300755700002500778700002200803700002600825700003100851700002300882856012600905       2007                        eng d  a1381-116900aTransesterification of alpha-haloesters and beta-ketoesters over Mg-Al-hydrotalcites (HT)-like anionic clays0 aTransesterification of alphahaloesters and betaketoesters over M  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcOCT  a158-1610 v2763 a<p>Transesterification of alpha-haloesters was achieved by reaction of alcohols in the presence of Mg-Al-HT-like anionic clays. beta-Ketoesters were also transesterified under similar conditions on reaction with alcohols with a wide variety of functional groups. (c) 2007 Elsevier B.V. All rights reserved.</p>10aalpha-haloesters10abeta-ketoesters10aheterogeneous catalyst10aHydrotalcites10atransesterification1 aBulbule, Vivek, J.1 aBorate, Hanumant, B.1 aMunot, Yogesh, S.1 aDeshpande, Vishnu, H.1 aSawargave, Sangmeshwer, P.1 aGaikwad, Abaji, G.  uhttps://library.ncl.res.in/content/transesterification-alpha-haloesters-and-beta-ketoesters-over-mg-al-hydrotalcites-ht-001041nas a2200217   4500008004100000022001400041245008600055210006900141260007600210300001200286520023100298653002700529653002600556653001400582653001300596100002500609700002200634700002700656700002600683856011400709       2008                        eng d  a0308-234200aSynthesis of substituted styrenes and stilbenes mediated by palladium on zirconia0 aSynthesis of substituted styrenes and stilbenes mediated by pall  aPO BOX 314, ST ALBANS AL1 4ZG, HERTS, ENGLANDbSCIENCE REVIEWS LTDcSEP  a495-4993 a<p>Palladium on zirconia has been found to be an effective catalyst for the synthesis of various substituted styrenes and stilbenes, including biologically active natural products, by reaction of aryl halides with olefins.</p>10aheterogeneous catalyst10apalladium on zirconia10astilbenes10astyrenes1 aBorate, Hanumant, B.1 aDumbre, Deepa, K.1 aWakharkar, Radhika, D.1 aChoudhary, Vasant, R.  uhttps://library.ncl.res.in/content/synthesis-substituted-styrenes-and-stilbenes-mediated-palladium-zirconia-001315nas a2200253   4500008004100000022001400041245009800055210006900153260006500222300001200287490000600299520042100305653000600726653000600732653002400738653002700762653002900789100002600818700002600844700002400870700002500894700002600919856011600945       2009                        eng d  a1895-106600aScolecite as an efficient heterogeneous catalyst for the synthesis of 2,4,5-triarylimidazoles0 aScolecite as an efficient heterogeneous catalyst for the synthes  a9 DRUGA POPRZECNA ST, 04-604 WARSAW 41, POLANDbVERSITAcSEP  a550-5540 v73 a<p>Natural scolecite has been found as an effective catalyst for the one-pot synthesis of 2,4,5-triarylimidazole derivatives via a three component reaction using benzil or benzoin, aldehydes and ammonium acetate. This method provides several advantages such as being environmentally benign, reusable, possessing high yields with increased variations of the substituents in the product and preparative simplicity.</p>10a210a410a5-Triarylimidazoles10aheterogeneous catalyst10aThree-component reaction1 aGadekar, Lakshman, S.1 aMane, Shivshankar, R.1 aKatkar, Santosh, S.1 aArbad, Balasaheb, R.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/scolecite-efficient-heterogeneous-catalyst-synthesis-245-triarylimidazoles-001459nas a2200241   4500008004100000022001400041245013500055210006900190260008900259300001400348490000700362520049000369653002700859653002800886653002300914653002200937100002600959700002400985700002601009700002501035700002601060856013101086       2009                        eng d  a0253-296400aScolecite catalyzed facile and efficient synthesis of polyhydroquinoline derivatives through hantzsch multi-component condensation0 aScolecite catalyzed facile and efficient synthesis of polyhydroq  a635-4 YEOGSAM-DONG, KANGNAM-GU, SEOUL 135-703, SOUTH KOREAbKOREAN CHEMICAL SOCcNOV  a2532-25340 v303 a<p>A facile and efficient synthetic route has been developed for the polyhydroquinoline via four component reactions of aldehydes, dimedone, ethyl acetoacetate and ammonium acetate in the presence of catalytic amount of scolecite in ethanol at 70 degrees C through Hantzsch reaction. This method gives remarkable advantages such as simple work-up procedure. environmentally friendly, inexpensive, non-toxic and recyclable catalyst, shorter reaction time along with excellent yields</p>10aheterogeneous catalyst10aMulticomponent reaction10aPolyhydroquinoline10aReusable catalyst1 aGadekar, Lakshman, S.1 aKatkar, Santosh, S.1 aMane, Shivshankar, R.1 aArbad, Balasaheb, R.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/scolecite-catalyzed-facile-and-efficient-synthesis-polyhydroquinoline-derivatives-through-001694nas a2200253   4500008004100000022001400041245008300055210006900138260009900207300001400306490000700320520079400327653001101121653002701132653001701159653001801176653002401194100001901218700002201237700002701259700002201286700001801308856011401326       2009                        eng d  a0016-236100aTransesterification of sunflower oil catalyzed by flyash-based solid catalysts0 aTransesterification of sunflower oil catalyzed by flyashbased so  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcSEP  a1773-17780 v883 a<p>Flyash-based base catalyst was used in the transesterification of sunflower oil with methanol to methyl esters in a heterogeneous manner. Catalyst preparation variables such as, the KNO(3) loading amount and calcination temperature were optimized. The catalysts were characterized by powder XRD. The catalyst prepared by loading of 5 wt.% KNO(3) on flyash followed by its calcination at 773 K has exhibited maximum oil conversion (87.5 wt.%). The influence of various reaction parameters such as % catalyst loading, methanol to oil molar ratio, reaction time, temperature, reusability of the catalyst on the catalytic activity was investigated. K(2)O derived from KNO(3) might be an essential component in the catalyst for its efficiency. (C) 2009 Elsevier Ltd. All rights reserved.</p>10aFlyash10aheterogeneous catalyst10aMethyl ester10aSunflower oil10atransesterification1 aKotwal, M., S.1 aNiphadkar, P., S.1 aDeshpande, Suvarna, S.1 aBokade, Vijay, V.1 aJoshi, P., N.  uhttps://library.ncl.res.in/content/transesterification-sunflower-oil-catalyzed-flyash-based-solid-catalysts-001149nas a2200217   4500008004100000022001400041245009900055210006900154260007700223300001200300490000700312520034600319653001300665653001900678653002700697653001200724100002200736700003200758700002200790856011900812       2010                        eng d  a1318-020700aH-beta zeolite: an efficient, reusable catalyst for one-pot synthesis of isatins from anilines0 aHbeta zeolite an efficient reusable catalyst for onepot synthesi  aHAJDRIHOVA 19, LJUBLJANA 1000, SLOVENIAbSLOVENSKO KEMIJSKO DRUSTVOcJUN  a466-4690 v573 a<p>We describe a simple and highly efficient procedure for the single-step preparation of isatins from the commercially available anilines using H-beta zeolite as a truly heterogeneous catalyst. H-beta zeolite is readily separated from reaction mixture by simple filtration and reused several times without considerable loss of activity.</p>10aAnilines10aH-beta zeolite10aheterogeneous catalyst10aisatins1 aRaj, Victor, Paul1 aShaikh, Tanveer, Mahamadali1 aSudalai, Arumugam  uhttps://library.ncl.res.in/content/h-beta-zeolite-efficient-reusable-catalyst-one-pot-synthesis-isatins-anilines-001679nas a2200277   4500008004100000022001400041245011500055210006900170260007500239300001000314490000700324520067300331653002201004653002101026653002701047653001401074653002401088100002001112700003201132700001701164700002601181700002001207700002601227700002201253856012601275       2010                        eng d  a1571-101300aNovel synthesis and characterization of titanium superoxide and its application in organic oxidative processes0 aNovel synthesis and characterization of titanium superoxide and   a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScMAR  a21-320 v143 a<p>A novel, exceptionally stable titanium superoxide radical ion was prepared and its structure determined by FTIR, ESR, Raman spectroscopy, X-ray diffraction, thermogravimetric/differential thermal analysis and elemental analysis. This heterogeneous catalyst has been found to be effective for the selective oxidation of aromatic amines and phenols to the corresponding nitro aromatics and p-quinones, respectively. In addition, this non-toxic, inexpensive and reusable catalyst has also been used in aminobromination of olefins, which proceed to give the 1, 2-bromoaminated anti-Markovnikov product. A brief account of these results is summarized in this review.</p>10aAmino Bromination10aAnti-Markovnikov10aheterogeneous catalyst10aOxidation10aTitanium superoxide1 aReddy, Santhosh1 aShaikh, Tanveer, Mahamadali1 aRawat, Varun1 aKarabal, Pratibha, U.1 aDewkar, Gajanan1 aSuryavanshi, Gurunath1 aSudalai, Arumugam  uhttps://library.ncl.res.in/content/novel-synthesis-and-characterization-titanium-superoxide-and-its-application-organic-001402nas a2200241   4500008004100000022001400041245012500055210006900180260007900249300001200328490000700340520046400347653001800811653002200829653002700851653002100878100002400899700002800923700002600951700002500977700002601002856013201028       2010                        eng d  a1001-841700aZnO-beta zeolite: as an effective and eco-friendly heterogeneous catalyst for the synthesis of benzothiazole derivatives0 aZnObeta zeolite as an effective and ecofriendly heterogeneous ca  a360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USAbELSEVIER SCIENCE INCcAPR  a421-4250 v213 a<p>A cheap and recyclable ZnO-beta zeolite was used as catalyst for the synthesis of benzothiazole derivatives. This method provides several advantages such as environmental friendliness, short reaction times, high yields, simple work-up procedure and catalyst was successfully reused for four cycles without significant loss of activity. (C) 2009 Machhindra K. Lande. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.</p>10aBenzothiazole10acyclocondensation10aheterogeneous catalyst10aZnO-beta zeolite1 aKatkar, Santosh, S.1 aMohite, Pravinkumar, H.1 aGadekar, Lakshman, S.1 aVidhate, Kaluram, N.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/zno-beta-zeolite-effective-and-eco-friendly-heterogeneous-catalyst-synthesis-benzothiazole-001511nas a2200241   4500008004100000022001400041245012300055210006900178260009200247300001200339490000600351520056800357653002600925653002700951653001900978653002100997100002401018700002801042700002601070700002501096700002601121856012201147       2010                        eng d  a1751-825300aZnO-beta zeolite: as an effective and reusable heterogeneous catalyst for the one-pot synthesis of polyhydroquinolines0 aZnObeta zeolite as an effective and reusable heterogeneous catal  a4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcDEC  a287-2920 v33 a<p>ZnO-beta zeolite, an inexpensive and mild catalyst, has been used for the synthesis of polyhydroquinolines in excellent yields from the one-pot four-component condensation of aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate in ethanol at room temperature. The remarkable advantages offered by this method are a green catalyst, mild reaction conditions, simple work-up procedures, much faster reactions, and excellent yield of products. Furthermore, the catalyst could be reused several times keeping its initial activity in recycled reactions.</p>10aHantzsch condensation10aheterogeneous catalyst10amulticomponent10aZnO-beta zeolite1 aKatkar, Santosh, S.1 aMohite, Pravinkumar, H.1 aGadekar, Lakshman, S.1 aArbad, Balasaheb, R.1 aLande, Machhindra, K.  uhttps://library.ncl.res.in/content/zno-beta-zeolite-effective-and-reusable-heterogeneous-catalyst-one-pot-synthesis-001953nas a2200277   4500008004100000022001400041245011000055210006900165260007300234300001200307490000800319520095500327653001101282653001301293653002701306653002101333653002401354653003301378100002501411700002101436700002101457700002801478700002301506700002101529856012501550       2011                        eng d  a0926-860X00aSelective catalytic oxidation of geraniol to citral with molecular oxygen in supercritical carbon dioxide0 aSelective catalytic oxidation of geraniol to citral with molecul  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a209-2140 v3943 a<p>Selective catalytic oxidation of geraniol to citral with molecular oxygen in supercritical carbon dioxide (scCO(2)) has been investigated. The catalyst used was a chromium containing mesoporous molecular sieve catalyst viz. CrMCM-41. Comparison studies were performed with CoMCM-41. PtMCM-41 and PdMCM-41 catalysts. Among the various catalysts studied. CrMCM-41 showed a high conversion of geraniol and an excellent selectivity for citral. In contrast CoMCM-41, PtMCM-41 and PdMCM-41 catalysts exhibited low conversion of geraniol. However all three catalysts compared showed similar citral selectivity to CrMCM-41. The effect of CO(2) pressure and reaction temperature geraniol oxidation was studied with CrMCM-41. Supercritical CO(2) medium was found to enhance the conversion of geraniol and/or yield of citral. It was noticed that the catalyst can be recycled with negligible loss of conversion. (C) 2011 Elsevier B.V. All rights reserved.</p>10aCitral10aGeraniol10aheterogeneous catalyst10aMolecular oxygen10aSelective oxidation10aSupercritical carbon dioxide1 aDapurkar, Sudhir, E.1 aKawanami, Hajime1 aChatterjee, Maya1 aRode, Chandrasekhar, V.1 aYokoyama, Toshirou1 aIkushima, Yutaka  uhttps://library.ncl.res.in/content/selective-catalytic-oxidation-geraniol-citral-molecular-oxygen-supercritical-carbon-001985nas a2200253   4500008004100000022001400041245011600055210006900171260007300240300001200313490000800325520103000333653002401363653002401387653002701411653001101438653002801449100001901477700003501496700003001531700001901561700002601580856012501606       2011                        eng d  a0926-860X00aSelective hydrogenation of chloronitrobenzenes with an MCM-41 supported platinum allyl complex derived catalyst0 aSelective hydrogenation of chloronitrobenzenes with an MCM41 sup  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY  a117-1250 v3993 a<p>A platinuin precatalyst (1) has been prepared by reacting [(eta(3)-C3H5)(4)Pt4Cl4] with surface functionalized MCM-41 with pendant -(CH2)(3)NH(CH2)(2)NH2 groups. For the hydrogenation of o-, m- and p-chloronitrobenzenes to the corresponding chloroanilines, 1 is found to be a highly active catalyst with good selectivities for them-and p-isomers. Its performance is superior to that of its palladium analogue and far superior to that of commercial (5%) Pt/C or (5%) Pt/Al2O3. Comparison of solid state and solution NMR data and other evidences indicate that on treatment with the functionalized MCM-41 support; [(eta(3)-C3H5)(4)Pt4Cl4] loses the ally! ligand. XPS data show that in the fresh catalyst Pt is present in the 2+ oxidation state. Based on these and analytical data, co-ordination by surface diamine and hydroxo groups to Pt2+ in 1 is suggested. In the used catalyst both Pt2+ and Pt are present but the amount of metallic platinum is similar to 16% of the total. (C) 2011 Elsevier B.V. All rights reserved.</p>10aChloronitrobenzenes10aDehydrohalogenation10aheterogeneous catalyst10aMCM-4110aSelective hydrogenation1 aIndra, Arindam1 aRajamohanan, Pattuparambil, R.1 aGopinath, Chinnakonda, S.1 aBhaduri, Sumit1 aLahiri, Goutam, Kumar  uhttps://library.ncl.res.in/content/selective-hydrogenation-chloronitrobenzenes-mcm-41-supported-platinum-allyl-complex-002665nas a2200241   4500008004100000022001400041245012800055210006900183260007400252300001200326490000800338520179600346653001202142653000902154653002002163653002702183653000802210653001702218653001402235100002002249700002902269856012502298       2014                        eng d  a1878-519000aSynthesis of 2,5-furandicarboxylic acid by the aerobic oxidation of 5-hydroxymethyl furfural over supported metal catalysts0 aSynthesis of 25furandicarboxylic acid by the aerobic oxidation o  aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcJUN  a173-1870 v1123 a<p>Supported Pt catalysts are synthesized, characterized and are used in the liquid phase air oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). Under the optimum reaction conditions of a stepwise increase in the reaction temperature (75 and 140 degrees C for 12 h each), we achieved as high as 96 % FDCA yield in presence of 1 bar oxygen pressure over Pt/c-Al2O3. It is shown that as the oxygen pressure increases (1-10 bar), the FDCA yields decrease, since at higher partial pressure of oxygen, overoxidation reactions of substrate and product(s) are possible. It is interesting to note that even with air as an oxidant, we obtained similar yields of FDCA as that with oxygen. Moreover, the effects of base (weak or strong), its concentration (equimolar or excess) were studied in detail. It is important to increase the reaction temperature in a stepwise manner to achieve higher yields of FDCA since at higher temperatures HMF undergoes self-degradation and thus the yields of FDCA decrease. The self-degradation of HMF is also proved by undertaking the reaction under nitrogen environment. The study on the effect of substrate-to-catalyst ratio is done to improve up on the economics of overall process. The effect of supports (reducible and non-reducible) and their oxygen storage capacity is discussed and is proposed to be one of the factors to change the course of reaction. Furthermore, we have shown that FDCA formed in the reaction can be successfully isolated (91 %, isolated yield) in the pure form and its purity is confirmed by NMR, melting point, and elemental analysis. The catalysts were characterized with X-ray powder diffraction, transmission electron microscopy and inductively coupled plasma-optical emission spectroscopy techniques.</p>10aBiomass10aFDCA10agreen chemistry10aheterogeneous catalyst10aHMF10aImpregnation10aOxidation1 aSahu, Ramakanta1 aDhepe, Paresh, Laxmikant  uhttps://library.ncl.res.in/content/synthesis-25-furandicarboxylic-acid-aerobic-oxidation-5-hydroxymethyl-furfural-over-002080nas a2200229   4500008004100000022001400041245007800055210006900133260011100202300001200313490000700325520121200332653001801544653002701562653002701589653002401616653003201640100002101672700002301693700002401716856011001740       2015                        eng d  a1385-272800aTailor made ionic liquids: catalyst and media for organic transformations0 aTailor made ionic liquids catalyst and media for organic transfo  aEXECUTIVE STE Y-2, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB EMIRATESbBENTHAM SCIENCE PUBL LTDcFEB  a728-7420 v193 a<p>Ionic liquids are considered as one of the safe, green and environmentally benign solvents/catalysts for many organic reactions. Particularly, imidazolium based ionic liquids attracted much attention in basic as well as applied research. The major role of these ionic liquids is the replacement of the existing corrosive solvents, which are largely used in most of the organic processes and make these processes more eco-friendly. Recent report reveals the importance of imidazolium based ionic liquids, supported on silica gel or polystyrene in catalysis. The solid supports have well versed properties such as easy anchoring of ionic liquid, chemically and mechanically very stable and inert in nature. These ionic liquids can be tailored either by covalent attachment or simple deposition of the ionic liquid on the surface of the support. Both approaches showed enhanced reactivity and selectivity for various reactions. In this review, we made an attempt to review the recent reports related to synthesis and applications of tailor made ionic liquids and their use as catalyst in Aldol, Friedel-Crafts alkylation, hydroformylation, nucleophilic substitution and biomass transformation reactions.</p>10aGreen solvent10aheterogeneous catalyst10aorganic transformation10asustainable process10atask-specific ionic liquids1 aChandra, Prakash1 aShinde, Sandip, S.1 aBiradar, Ankush, V.  uhttps://library.ncl.res.in/content/tailor-made-ionic-liquids-catalyst-and-media-organic-transformations-001610nas a2200253   4500008004100000022001400041245015100055210006900206260000800275300001000283490000800293520072400301653002801025653001401053653002001067653002701087653001301114653003001127100001701157700001801174700001801192700001801210856012801228       2018                        eng d  a1566-736700aRu(II)-functionalized SBA-15 as highly chemoselective, acid free and sustainable heterogeneous catalyst for acetalization of aldehydes and ketones0 aRuIIfunctionalized SBA15 as highly chemoselective acid free and   cJAN  a62-660 v1043 a<p>Combining electron deficient Ru(II) coordination sites with organofunctionalized SBA-15, (L)Ru(Il)@SBA-15, result in a mild, neutral, water scavenger free and chemo-selective acetalization catalyst for cyclic/acyclic acetals. Vacant coordination sites of ruthenium in (L)Ru(II)@SBA-15 activates protecting groups as well as reactants simultaneously and restricts the reverse acetalization reaction. Synthesized (L)Ru(Il)@SBA-15 catalyst has been thoroughly characterized and act as competitive catalyst compared to conventional acid catalysts. (L) RuaD@SBA-15 performs high catalytic activity as well as selectivity within 20 min with high TOF. The catalyst can be recycled and reaction parameters are optimized.</p>10aAcetalization reactions10aAcid free10achemo-selective10aheterogeneous catalyst10aReusable10aRu(II) immobilized SBA-151 aLazar, Anish1 aBetsy, K., J.1 aVinod, C., P.1 aSingh, A., P.  uhttps://library.ncl.res.in/content/ruii-functionalized-sba-15-highly-chemoselective-acid-free-and-sustainable-heterogeneous01712nas a2200289   4500008004100000022001400041245018100055210006900236260000900305300001400314490000600328520076400334653000601098653000601104653001601110653002201126653002001148653001301168653002001181653002701201100000501228700002701233700000501260700000501265700002801270856012401298       2019                        eng d  a2365-654900aBentonite - Clay - supported cuprous iodide nanoparticles (BENT- CuI NPs): a new heterogeneous catalyst in diversity - oriented synthesis of 1, 2, 3-triazoles in aqueous medium0 aBentonite Clay supported cuprous iodide nanoparticles BENT CuI N  cJUN   a7144-71500 v43 a<p>Bentonite clay supported cuprous iodide nanoparticles (BENT-CuI NPs) were prepared and demonstrated for the first time as an efficient heterogeneous catalyst in diversity oriented, green synthesis of 1,2,3-triazoles by one-pot, three component reaction between alkyl halides, arylboronic acids, or epoxides with alkynes and sodium azide in aqueous medium. The catalyst was characterized by Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES), Energy Dispersive X-ray Spectroscopy(EDS), Scanning Electron Microscopy (SEM), X-Ray Powder Diffraction (XRD), Transmission Electron Microscopy (TEM) as well as Brunauer-Emmett-Teller (BET) techniques and was found to be reusable for five consecutive runs without significant loss of activity.</p>
10a110a210a3-triazoles10aarylboronic acids10aclick synthesis10aepoxides10agreen chemistry10aheterogeneous catalyst1 a1 aCharate, Shrinivas, P.1 a1 a1 aWadgaonkar, Prakash, P.  uhttps://library.ncl.res.in/content/bentonite-clay-supported-cuprous-iodide-nanoparticles-bent-cui-nps-new-heterogeneous02710nas a2200229   4500008004100000022001400041245010600055210006900161260000900230300001600239490000700255520191300262653002502175653002302200653001902223653002702242653001402269653002802283100002002311700002202331856012702353       2023                        eng d  a1944-824400aSelective and robust Ru catalyst for the aqueous phase aerobic oxidation of furfural to 2-furoic acid0 aSelective and robust Ru catalyst for the aqueous phase aerobic o  cSEP   a47004-470150 v153 a<p>
	Synthesis of 2-furoic acid (FURA) via oxidation of furfural (FAL) is vital in evolving the biorefinery concept as FURA has numerous important applications in the pharmaceuticals and optic areas. Though few works on this reaction are done, those are marred with shortcomings such as the nonrecyclability of catalyst, dilute solutions, lower yields, or use of H2O2 as an oxidizing agent. Herein, we report catalytic aqueous phase oxidation of FAL to FURA using molecular oxygen as an oxidizing agent. For the synthesis of FURA, various catalysts with a combination of metal (Pt, Pd, Ru) and supports (carbon, Al2O3) were prepared and characterized by multiple techniques (X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS)). Oxidation of FAL carried out over 5 wt % Ru/C catalyst in the presence of Na2CO3 yielded 83% of FURA at 120 degrees C and 15 bar oxygen pressure. The catalyst could show potential for reusability as similar activity was achieved after subjecting the spent catalyst to mild reduction treatment (150 degrees C). Studies on the effects of temperature, pressure, and time could help accomplish enhanced yields of FURA. Additionally, learning about the effect of base (weak/strong/solid) revealed that due to the weak basicity of Na2CO3, higher yields could be achieved by maintaining approximately a pH of 11, which is optimal for suppressing side reactions. Under the given conditions, FURA is stable (&gt;90%) and also adsorption studies divulge that it is immediately removed from the catalyst surface, and hence higher yields could be achieved in our catalytic system. Using the initial rates methodology, an activation energy of 21.91 kJ mol(-1) was derived and also a high turn over frequency (TOF) (85.9 h(-1)) was observed under optimized conditions.</p>
10a2-furoic acid (FURA)10aBiomass conversion10afurfural (FAL)10aheterogeneous catalyst10aOxidation10aruthenium on carbon etc1 aLokhande, Priya1 aDhepe, Paresh, L.  uhttps://library.ncl.res.in/content/selective-and-robust-ru-catalyst-aqueous-phase-aerobic-oxidation-furfural-2-furoic-acid01971nas a2200229   4500008004100000022001400041245007800055210006900133260000800202300001100210490000800221520123500229653001001464653001201474653002701486653001701513653002401530100003201554700001901586700002901605856010701634       2023                        eng d  a0926-860X00aSelective oxidation of 5-HMF to DFF over alkali promoted Mn nanocomposite0 aSelective oxidation of 5HMF to DFF over alkali promoted Mn nanoc  cJUN  a1191800 v6593 a<p>
	Various compositions of Cs promoted Mn catalysts were synthesized and investigated for selective oxidation of 5HMF to DFF, among which Mn-Cs(80:20) was found to be most efficient giving 91 % conversion of 5-HMF and 99 % selectivity to DFF. Detail characterization like N2-sorption, BET surface area, TG-DTA, XRD, XPS, FE-SEM-EDX, TEM, HR-TEM, CO2-TPD, H2-TPR, O2-TPO, FTIR, Raman spectra and CH3OH-IR were done to establish structureactivity correlation. Enhanced surface area, porosity, thermal stability, dual morphologies were observed due to inclusion of Cs in Mn lattice domain which further enhanced the crystallinity, and oxygen diffusion on the surface. Mixed morphologies comprising nanoparticles (4-5 nm) and nanocubes (50-60 nm) were observed with enhanced redox potential and reduced work function due to weakening of Mn-O bonds. Significant increase in the basicity of catalyst, interfacial redox properties and lattice oxygen led to highly efficient oxidation of 5-HMF to DFF via Mars-van Krevelen mechanism at relatively milder conditions i.e. T = 90 degrees C and PO2= 200 psig. The catalyst was easily recyclable up to 7 times with minor loss in activity which was regenerated heat treatment protocol.</p>
10a5-HMF10aBiomass10aheterogeneous catalyst10apolyurethane10aSelective oxidation1 aSolanki, Bhanupratap, Singh1 aRoh, Hyun-Seog1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/selective-oxidation-5-hmf-dff-over-alkali-promoted-mn-nanocomposite02269nas a2200241   4500008004100000022001400041245016300055210006900218260000800287300001200295490000800307520137700315653003101692653002701723653001401750653002801764100001801792700002401810700002101834700001901855700002101874856013201895       2024                        eng d  a0026-924700aFerric oxide nanocatalyst: synthesis, characterization, and application in the one-pot three-component synthesis of 3,4,5-trisubstituted isoxazole derivatives0 aFerric oxide nanocatalyst synthesis characterization and applica  cJUN  a631-6410 v1553 a<p>
	In this study, we have focused on the preparation and application of a nano-ferric oxide catalyst as a heterogeneous catalyst in the one-pot, three-component synthesis of isoxazole derivatives. The ferric oxide catalyst was synthesized using a simple precipitation method and thoroughly characterized using techniques such as FT-IR, XRD, SEM, EDX, and BET. The effectiveness of the ferric oxide catalyst as a heterogeneous catalyst was investigated in the synthesis of 3,4,5-trisubstituted isoxazole. The results of the synthesis demonstrated that the catalyst exhibited high efficiency in facilitating the three-component, one-pot synthesis of 3,4,5-trisubstituted isoxazole derivatives. The synthesis route employed in this study offers several advantages, including its simplicity, ease of workup, and environmental friendliness. Furthermore, the catalyst was successfully recovered and reused for five cycles without experiencing a significant loss in catalytic activity. This finding highlights the excellent stability and promising potential of the catalyst for organic transformations. Overall, our study showcases the successful preparation and application of the nano-ferric oxide catalyst in the synthesis of isoxazole derivatives, providing valuable insights into its catalytic performance and potential for future applications in organic chemistry.</p>
10aFerric oxide nanoparticles10aheterogeneous catalyst10aIsoxazole10aMulticomponent reaction1 aTotre, Ganesh1 aShinde, Dnyaneshwar1 aShirsath, Sachin1 aPatil, Prakash1 aKulkarni, Pramod  uhttps://library.ncl.res.in/content/ferric-oxide-nanocatalyst-synthesis-characterization-and-application-one-pot-three-component02240nas a2200229   4500008004100000022001400041245014100055210006900196260000800265300001400273490000800287520141800295653001801713653001601731653002701747653001601774653001501790100002201805700002301827700002901850856013101879       2024                        eng d  a1011-372X00aNovel sulfonic acid functionalized silica supported isonicotinic acid catalyst for conversion of 2-methylfuran to diesel fuel precursors0 aNovel sulfonic acid functionalized silica supported isonicotinic  cAPR  a1511-15200 v1543 a<p>Polyfuranic compounds produced after carbon up-gradation of 2-methylfuran by acid catalyzed C-C bond forming reactions when undergo hydro-deoxygenation produce diesel fuel. Herein, we prepared a simple and novel silica supported sulfonic acid functionalized isonicotinic acid SO3H-INA@SiO2 catalyst by treating isonicotinic acid with chlorosulphonic acid followed by heterogenization on silica. This heterogeneous solid acid catalyst was explored for the solvent free conversion of 2-methylfuran to diesel fuel precursors of C-15 and C-20 units via tandem ring opening followed by condensation sequence. Under optimized reaction conditions, SO3H-INA@SiO2 was able to convert, 2-methylfuran completely into condensation products such as 5,5-bis(5-methylfuran-2-yl)pentan-2-one (1) and 2,4,4-tris(5-methylfuran-2-yl)pentan-1-ol (2) with 19% and 67% yields, respectively. The heterogeneous SO3H-INA@SiO2 catalyst was successfully recycled up to six consecutive runs without loss of its activity. The SO3H-INA@SiO2 catalyst offered superior activity as compared to the commercially available -SO3H functionalized resins. Superior activity of the prepared catalyst could be attributed for its higher acidity, smaller particle size and high surface area. Structure of the prepared catalyst was confirmed by FTIR and solid state NMR. Total acidity of the prepared catalyst was determined by acid-base titration.</p>
10a2-Methylfuran10aDiesel fuel10aheterogeneous catalyst10aIonic solid10asolid acid1 aTarade, Komal, P.1 aKamble, Sanjay, P.1 aRode, Chandrashekhar, V.  uhttps://library.ncl.res.in/content/novel-sulfonic-acid-functionalized-silica-supported-isonicotinic-acid-catalyst-conversion-2