01037nas 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-hydrotalcite01041nas 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-001496nas a2200217   4500008004100000022001400041245013500055210006900190260007300259300001400332490000700346520064600353653002600999653001701025653001901042653002501061653001401086100002601100700002201126856013001148       2009                        eng d  a1566-736700aMagnesium oxide supported nano-gold: a highly active catalyst for solvent-free oxidation of benzyl alcohol to benzaldehyde by TBHP0 aMagnesium oxide supported nanogold a highly active catalyst for   aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUL  a1738-17420 v103 a<p>Nano-size gold particles deposited on MgO by the homogeneous deposition- precipitation showed very high catalytic activity with nearly 100% conversion of benzyl alcohol in a short reaction period (0.5 h) and more over showed excellent reusability in the process. Influence of the catalyst support (MgO, CaO, BaO, SrO, Al(2)O(3), Ga(2)O(3) and In(2)O(3)), method of gold deposition, Au loading and catalyst calcination temperature and also that of the reaction conditions (viz. reaction time and temperature) on the benzyl alcohol to benzaldehyde oxidation have been thoroughly investigated. (C) 2009 Elsevier B.V. All rights reserved.</p>10aAlkaline earth oxides10aBenzaldehyde10aBenzyl alcohol10aGr.IIIa metal oxides10aOxidation1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.  uhttps://library.ncl.res.in/content/magnesium-oxide-supported-nano-gold-highly-active-catalyst-solvent-free-oxidation-benzyl-002179nas a2200169   4500008004100000022001400041245015700055210006900212260007100281300001400352490000700366520143200373100002601805700002201831700002801853856012801881       2009                        eng d  a0888-588500aOxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide over nanogold supported on TiO2 and other transition and rare-earth metal oxides0 aOxidation of benzyl alcohol to benzaldehyde by tertbutyl hydrope  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcNOV  a9471-94780 v483 a<p>Liquid-phase oxidation of benzyl alcohol to benzaldehyde by tertiary butyl hydroperoxide (at 95 degrees C) over nanogold supported oil TiO2 and other transition-metal oxides (viz, MnO2, Fe2O3, CoOx, NiO, CuO, ZnO, and ZrO2) or rare-earth oxides (viz, La2O3, Sm2O3, Eu2O3, and Yb2O3) by the homogeneous deposition-precipitation (HDP) method has been investigated. The Au/TiO2 catalyst, prepared using the HDP method, showed high activity and selectivity in the reaction. The ZrO2-Supported nanogold catalyst (HDP) also showed very good performance. The Au/TiO2 catalyst that was prepared using the deposition-precipitation (DP) method, however, showed poor catalytic activity, mostly because of its much-lower gold loading and/or lower Au3+/Au-0 ratio. Irrespective of the catalyst preparation method, the catalytic activity increased as the gold loading increased. The gold deposition method strongly influenced the amount of gold that was deposited on TiO2, the gold particle size distribution, and also the surface Au3+/Au-0 ratio; using the HDP method, the gold deposition was much larger, the gold particle size was smaller, the gold particle size distribution was much narrower, and the Au3+/Au-0 ratio was higher. Both the metallic and ionic gold species (Au-0 and Au3+) are present in the Au/TiO2 catalyst. However, the Au3+ species are mostly responsible for the high catalytic activity in the oxidation process.</p>1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/oxidation-benzyl-alcohol-benzaldehyde-tert-butyl-hydroperoxide-over-nanogold-supported-003557nas a2200253   4500008004100000022001400041245010900055210006900164260007500233300001400308490000700322520266100329653001702990653001903007653001603026653002503042653002403067653001403091653001203105653001803117100002603135700002203161856012003183       2009                        eng d  a1022-552800aSupported nano-gold catalysts for epoxidation of styrene and oxidation of benzyl alcohol to benzaldehyde0 aSupported nanogold catalysts for epoxidation of styrene and oxid  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGER/PLENUM PUBLISHERScNOV  a1677-16870 v523 a<p>Nano-gold particles supported on different alkaline earth oxides (viz. MgO, CaO, BaO and SrO), Gr. IIIa metal oxides (viz. Al(2)O(3), Ga(2)O(3), In(2)O(3) and Tl(2)O(3)), transition metal oxides (viz. TiO(2), Cr(2)O(3), MnO(2), Fe(2)O(3), CoO(x), NiO, CuO, ZnO, Y(2)O(3) and ZrO(2)), rare earth metal oxides (viz. La(2)O(3), Ce(2)O(3), Nd(2)O(3), Sm(2)O(3), Eu(2)O(3), Tb(2)O(3), Er(2)O(3) and Yb(2)O(3)) and U(3)O(8) [all prepared by depositing gold on corresponding metal oxide support by deposition precipitation (DP) and/or homogeneous deposition precipitation (HDP) method] were evaluated for their catalytic performance in the liquid phase epoxidation of styrene by tert-butyl hydroperoxide (TBHP) to styrene oxide and also in the solvent-free benzyl alcohol-to-benzaldehyde oxidation (by molecular oxygen or TBHP) reactions. For the epoxidation, the catalytic performance (styrene oxide yield) of the most promising nano-gold catalysts prepared by the HDP method was in the following order: Au/MgO &gt; Au/Tl(2)O(3) &gt; Au/Yb(2)O(3) &gt; Au/Tb(2)O(3) &gt; Au/CaO (or TiO(2)). However, for the oxidation of benzyl alcohol to benzaldehyde by molecular oxygen, the order of choice for the most promising catalysts (based on benzaldehyde yield) was Au/U(3)O(8) &gt; Au/Al(2)O(3) &gt; Au/ZrO(2) &gt; Au/MgO. Whereas, when TBHP was used as an oxidizing agent for the benzyl alcohol oxidation, the order of choice for the most promising catalysts was Au/U(3)O(8) &gt; Au/MgO &gt; Au/TiO(2) &gt; Au/ZrO(2) &gt; Au/Al(2)O(3). The catalytic performance of a particular supported nano-gold catalyst was thus found to depend on the reaction catalysed by them. Moreover, it is strongly influenced by a number of catalyst parameters, such as the metal oxide support, the method of gold depositon on the support, the gold loading and also on the catalyst calcination temperature. Nano-gold particles-support interactions seem to play an important role in controlling the deposition of gold ( amount of gold deposited and size and morphology of gold particles), formation of different surface gold species (Au(0), Au(1+) and Au(3+)) and electronic properties of gold particles and, consequently, control the catalytic performance (both the activity and selectivity) of the supported nano-gold catalysts in the reactions. The nano-gold catalysts prepared by the HDP method showed much better catalytic performance than those prepared by the DP, coprecipitation or impregnation method; in general, the HDP method provided supported gold catalysts with much higher gold loading and/or smaller size gold particles than that achieved by the DP and other methods.</p>10aBenzaldehyde10aBenzyl alcohol10aepoxidation10aMetal oxide supports10aNano-gold catalysts10aOxidation10astyrene10aStyrene oxide1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.  uhttps://library.ncl.res.in/content/supported-nano-gold-catalysts-epoxidation-styrene-and-oxidation-benzyl-alcohol-001942nas a2200229   4500008004100000022001400041245013900055210006900194260007300263300001200336490000800348520105400356653002101410653001701431653001901448653001401467653002201481653002901503100002601532700002201558856013201580       2010                        eng d  a0926-860X00aSolvent-free selective oxidation of benzyl alcohol to benzaldehyde by tert-butyl hydroperoxide over U3O8-supported nano-gold catalysts0 aSolventfree selective oxidation of benzyl alcohol to benzaldehyd  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAR  a252-2570 v3753 a<p>Liquid-phase oxidation of benzyl alcohol to benzaldehyde by tertiary butyl hydroperoxide over different uranium oxide supported nano-gold catalysts in the absence of a solvent has been thoroughly investigated. The influences of catalyst parameters [viz, method of gold deposition (impregnation, co-precipitation, deposition-precipitation and homogeneous deposition-precipitation), gold loading (08 wt%) and catalyst calcination temperature (100-900 degrees C)] on the catalyst performance have been investigated. The influence of reaction conditions [viz, reaction time (0-2 h) and temperature (25-94 degrees C)] on the process performance has also been studied. The Au/U3O8 catalyst prepared by the homogeneous deposition-precipitation and calcined at 400 degrees C showed very high activity (100% benzyl alcohol conversion with &gt;85% selectivity for benzaldehyde) in the process for a short reaction period (0.5 h) at 94 degrees C. The catalyst also showed excellent reusability in the process. (C) 2010 Elsevier B.V. All rights reserved.</p>10aAu/U3O8 catalyst10aBenzaldehyde10aBenzyl alcohol10aNano-gold10aPartial oxidation10atert-Butyl hydroperoxide1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.  uhttps://library.ncl.res.in/content/solvent-free-selective-oxidation-benzyl-alcohol-benzaldehyde-tert-butyl-hydroperoxide-over-001218nas a2200229   4500008004100000022001400041245010400055210006900159260008600228300001800314490000700332520037500339653001700714653001200731653000700743653003000750653000900780100002200789700002700811700002600838856012400864       2011                        eng d  a0039-791100aGreener ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO2 catalyst0 aGreener ullmanntype coupling of aryl halides for preparing biary  a325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcJAN  aPII 9312497960 v413 a<p>Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140 degrees C, using a reusable Pd (2.5wt%)/ZrO2 catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.</p>10aAryl halides10aBiaryls10aPd10aUllmann coupling reaction10aZrO21 aDumbre, Deepa, K.1 aWakharkar, Radhika, D.1 aChoudhary, Vasant, R.  uhttps://library.ncl.res.in/content/greener-ullmann-type-coupling-aryl-halides-preparing-biaryls-using-reusable-pdzro2-001212nas a2200229   4500008004100000022001400041245011200055210006900167260010600236300001200342490000700354520031900361653002200680653001900702653001800721653002600739100001800765700002200783700002200805700002600827856012900853       2011                        eng d  a0040-403900aOne-pot three-component kabachnik-fields synthesis of alpha-aminophosphonates using H-beta zeolite catalyst0 aOnepot threecomponent kabachnikfields synthesis of alphaaminopho  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcFEB  a863-8660 v523 a<p>One-pot three-component Kabachnik-Fields synthesis of alpha-aminophosphonates with high yields from the reaction between carbonyl compound, primary amine, and substituted phosphite can be carried out in a short period, using H-beta zeolite as a reusable catalyst. (C) 2010 Elsevier Ltd. All rights reserved.</p>10aCarbonyl compound10aH-beta zeolite10aPrimary amine10aSubstituted phosphite1 aTillu, V., H.1 aDumbre, Deepa, K.1 aWakharkar, R., D.1 aChoudhary, Vasant, R.  uhttps://library.ncl.res.in/content/one-pot-three-component-kabachnik-fields-synthesis-alpha-aminophosphonates-using-h-beta-001508nas a2200217   4500008004100000022001400041245016200055210006900217260007300286300001000359490000700369520064800376653001301024653001401037653001101051653002101062653002701083100002601110700002201136856013201158       2011                        eng d  a1566-736700aSolvent-free selective oxidation of primary alcohols-to-aldehydes and aldehydes-to-carboxylic acids by molecular oxygen over MgO-supported nano-gold catalyst0 aSolventfree selective oxidation of primary alcoholstoaldehydes a  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcOCT  a82-860 v133 a<p>Magnesium oxide supported nano-gold catalyst (prepared by the homogeneous deposition precipitation technique) showed high activity/selectivity and excellent reusability in the oxidation of different primary alcohols and aldehydes to corresponding aldehydes and carboxylic acids, respectively, by molecular oxygen (under atmospheric pressure) in the absence of any solvent. Influence of the catalyst calcination temperature (400-900 degrees C), reaction temperature (50-120 degrees C) and use of different solvents (viz. toluene. p-xylene, DMF or DMSO) on the oxidation reaction has also been studied. (C) 2011 Published by Elsevier B.V.</p>10aAlcohols10aaldehydes10aAu/MgO10aMolecular oxygen10aSolvent-free oxidation1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.  uhttps://library.ncl.res.in/content/solvent-free-selective-oxidation-primary-alcohols-aldehydes-and-aldehydes-carboxylic-acids-001602nas a2200217   4500008004100000022001400041245014100055210006900196260007300265300001400338490000700352520071200359653001901071653001101090653004001101653002601141653004001167100002601207700002201233856012901255       2011                        eng d  a1566-736700aThermally decomposed Ni-Fe-hydrotalcite: a highly active catalyst for the solvent-free N-acylation of different amines by acid chlorides0 aThermally decomposed NiFehydrotalcite a highly active catalyst f  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAUG  a1351-13560 v123 a<p>A composite Ni-Fe catalyst obtained from the thermal decomposition of Ni-Fe-hydrotalcite at 600 degrees C shows very high activity in the solvent-free N-acylation of amines by different acid chlorides with high product yields under very mild reaction conditions (viz, room temperature, short reaction period and small amount of catalyst). The catalyst also shows excellent reusability in the reaction. The crystalline phases present in the catalyst are mixed oxides and hydroxides of nickel and iron. The high catalytic activity of the decomposed Ni-Fe-hydrotalcite is attributed to the formation of uniformly distributed Ni-Fe metal oxides and hydroxides. (C) 2011 Elsevier B.V. All rights reserved.</p>10aAcid chlorides10aamines10aDecomposition of Ni-Fe-hydrotalcite10aN-acylation of amines10aNi-Fe-hydrotalcite derived catalyst1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.  uhttps://library.ncl.res.in/content/thermally-decomposed-ni-fe-hydrotalcite-highly-active-catalyst-solvent-free-n-acylation-001266nas a2200169   4500008004100000022001400041245014400055210006900199260011000268300001400378490000600392520050500398100002600903700002200929700001800951856012700969       2012                        eng d  a2046-206900aFeCl3/Montmorillonite K10 as an efficient catalyst for solvent-free aza-Michael reaction between amine and alpha,beta-unsaturated compounds0 aFeCl3Montmorillonite K10 as an efficient catalyst for solventfre  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcJUN  a7061-70650 v23 a<p>A highly efficient, inexpensive and greener protocol for aza-Michael addition reaction of different aromatic and aliphatic/cyclic amines to alpha,beta-unsaturated compounds using a FeCl3/MontK10 catalyst under solvent-free conditions has been developed. The Michael addition products are obtained in good to excellent yields. The catalyst was insensitive to moisture and it also showed excellent reusability in the reaction. Its high activity is attributed mostly to redox properties of FeCl3.</p>1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aPatil, S., K.  uhttps://library.ncl.res.in/content/fecl3montmorillonite-k10-efficient-catalyst-solvent-free-aza-michael-reaction-between-001163nas a2200241   4500008004100000022001400041245008300055210006900138260008600207300001400293490000700307520032500314653001000639653001200649653001400661653002100675100001800696700002200714700002500736700002200761700002600783856011200809       2012                        eng d  a0039-791100aSolvent-free one-pot synthesis of sulfonephthaleins from saccharin and phenols0 aSolventfree onepot synthesis of sulfonephthaleins from saccharin  a325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcOCT  a1101-11070 v423 a<p>Sulfonephthaleins can be synthesized in a single pot from saccharin and phenol via the in situ formation of 2-sulfobenzoic anhydride, followed by its reaction with phenol using H2SO4 as the condensing agent, in the absence of any solvent. This solvent-free synthesis is more economical and environmentally benign.</p>10aH2SO410aPhenols10asaccharin10asulfonephthalein1 aTillu, V., H.1 aDumbre, Deepa, K.1 aBorate, Hanumant, B.1 aWakharkar, R., D.1 aChoudhary, Vasant, R.  uhttps://library.ncl.res.in/content/solvent-free-one-pot-synthesis-sulfonephthaleins-saccharin-and-phenols-001457nas a2200229   4500008004100000022001400041245012500055210006900180260010200249300001200351490000800363520056000371653000900931653001300940653004900953653001401002653000901016100002601025700002201051700002401073856013001097       2012                        eng d  a0974-362600aSolvent-free oxidation of aldehydes to acids by TBHP using environmental-friendly -exchanged Mg-Al hydrotalcite catalyst0 aSolventfree oxidation of aldehydes to acids by TBHP using enviro  aC V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIAbINDIAN ACAD SCIENCEScJUL  a835-8390 v1243 a<p>A number of hydrotalcite (Mg-Al, Mn-Al, Co-Al, Ni-Al, Mg-Fe, Mg-Cr and Cu-Al) catalysts, with or without MnO-exchange, were evaluated for their performance in the solvent-free oxidation of benzaldehyde to benzoic acid by tert-butyl hydroperoxide under reflux in the absence of any solvent. The MnO-exchanged Mg-Al-hydrotalcite (Mg/Al = 10) showed high activity in the oxidation of different aromatic and aliphatic aldehydes to their corresponding acids and also showed excellent reusability in the oxidation process which is environmental-friendly.</p>10aacid10aAldehyde10aMnO4-1-exchanged Mg-Al-hydrotalcite catalyst10aOxidation10aTBHP1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aNarkhede, Vijay, S.  uhttps://library.ncl.res.in/content/solvent-free-oxidation-aldehydes-acids-tbhp-using-environmental-friendly-exchanged-mg-al-001669nas a2200253   4500008004100000022001400041245013200055210006900187260007300256300001200329490000700341520072900348653001701077653003201094653002301126653001301149653001601162653001201178100002601190700002201216700001801238700002801256856013101284       2012                        eng d  a1566-736700aThermally decomposed Cu-Fe-hydrotalcite. a novel highly active catalyst for o-arylation of naphthol and phenols by aryl halides0 aThermally decomposed CuFehydrotalcite a novel highly active cata  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcDEC  a132-1360 v293 a<p>A novel, efficient and environmentally benign method has been reported for the synthesis of diaryl ethers by the o-arylation of napthol or phenols with aryl halides in dimethylformamide (as a solvent) under reflux, using a novel heterogeneous catalyst (having redox properties), obtained from thermal decomposition of Cu-Fe at 600 degrees C in the absence of externally added base. The catalyst comprises Cu(II) and Fe(III) species (oxides and hydroxides), which are uniformly distributed during the catalyst formation. The catalyst can be easily separated from the reaction mixture, simply by filtration and reused several times without a significant loss of its activity. (C) 2012 Elsevier B.V. All rights reserved.</p>10aAryl halides10aC-O cross coupling reaction10aCu-Fe-hydrotalcite10aNaphthol10ao-Arylation10aPhenols1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aYadav, P., N.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/thermally-decomposed-cu-fe-hydrotalcite-novel-highly-active-catalyst-o-arylation-naphthol-002101nas a2200253   4500008004100000022001400041245024000055210006900295260009500364300001200459490000800471520100600479653002201485653002701507653002301534653001801557653002901575100002601604700002201630700001801652700001901670700002801689856013001717       2013                        eng d  a0021-951700aEpoxidation of styrene by t-butyl hydroperoxide over gold nanoparticles supported on Yb2O3: effect of gold deposition method, gold loading, and calcination temperature of the catalyst on its surface properties and catalytic performance0 aEpoxidation of styrene by tbutyl hydroperoxide over gold nanopar  a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcAPR  a217-2240 v3003 a<p>Surface properties and epoxidation performance of Au/Yb2O3 catalyst are influenced by the method of gold deposition [viz. deposition-precipitation (DP), homogeneous deposition-precipitation (HDP) or impregnation], gold loading (0.9-6.6 wt%), and the catalyst calcination temperature (400-900 degrees C)]. The catalyst showed the best epoxidation performance when it was prepared by the HDP method and calcined at 500 degrees C. The Au/Yb2O3 catalyst even after calcination at 900 degrees C showed good activity and epoxide selectivity. Both Au-0 and Au3+ surface species were found in the catalyst calcined at 800 degrees C, but only Au-0 species were observed at the lower calcination temperatures (&lt;600 degrees C). The selectivity for styrene oxide increased continuously with the reaction temperature (from 75 degrees C to 97 degrees C) and time (1-5 h), indicating that styrene oxide did not undergo secondary reactions under these conditions. (C) 2013 Elsevier Inc. All rights reserved.</p>10aAu/Yb2O3 catalyst10aEpoxidation of styrene10agold nanoparticles10aStyrene oxide10atert-Butyl hydroperoxide1 aChoudhary, Vasant, R.1 aDumbre, Deepa, K.1 aPatil, N., S.1 aUphade, B., S.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/epoxidation-styrene-t-butyl-hydroperoxide-over-gold-nanoparticles-supported-yb2o3-effect-002083nas a2200253   4500008004100000022001400041245016200055210006900217260009500286300001200381490000800393520105900401653001701460653002901477653001401506653002401520653002401544653003701568100002201605700001801627700002801645700002601673856013001699       2013                        eng d  a0021-951700aSuzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acids over gold nano-particles supported on MgO (or CaO) and other metal oxides0 aSuzukiMiyaura crosscoupling reaction between aryl halides and ph  a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcMAY  a134-1400 v3013 a<p>Gold nano-particles-supported alkaline earth metal oxides, particularly MgO or CaO, show high catalytic activity in the Suzuki-Miyaura cross-coupling reaction in the presence of K2CO3 and DMF (as a solvent). The catalytic activity is strongly influenced by the nature or type of metal oxide support (viz, alkaline earth oxide, Group IIIA metal oxide, transition metal oxide, or rare earth oxide actinide oxide). It is also strongly influenced by the nature of aryl halide (aryl iodide, bromide, chloride, or fluoride), amount of K2CO3 in the reaction mixture and catalyst calcination temperature. Influence of reaction parameters viz, temperature and time and different substituents in aryl halides and/or phenylboronic acids on the biphenyl product yield in the reaction over Au/MgO catalyst has also been investigated. The catalyst showed excellent reusability in the reaction. Moreover, it is ligand-free and also has much lower cost than the commonly used homogeneous and heterogeneous Pd catalysts. (C) 2013 Elsevier Inc. All rights reserved.</p>10aAryl halides10aAu/MgO (or CaO) catalyst10aBiphenyls10aGold nano-particles10aphenylboronic acids10aSuzuki-Miyaura coupling reaction1 aDumbre, Deepa, K.1 aYadav, P., N.1 aBhargava, Suresh, Kumar1 aChoudhary, Vasant, R.  uhttps://library.ncl.res.in/content/suzuki-miyaura-cross-coupling-reaction-between-aryl-halides-and-phenylboronic-acids-over-001580nas a2200253   4500008004100000022001400041245012600055210006900181260009500250300001200345490000800357520058400365653001100949653002700960653002300987653004701010653001801057100002201075700002601097700002201123700002101145700002801166856013201194       2014                        eng d  a0021-979700aCalcium oxide supported gold nanoparticles as catalysts for the selective epoxidation of styrene by t-butyl hydroperoxide0 aCalcium oxide supported gold nanoparticles as catalysts for the   a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcFEB  a111-1160 v4153 a<p>Gold nanoparticles are deposited on basic CaO supports as catalysts for the selective conversion of styrene into styrene oxide. Synthetic methods, gold loading and calcination temperatures are varied to permit an understanding of their influence on gold nanoparticle size, the presence of cationic gold species and the nature of interaction between the gold nanoparticles and the CaO support. Based on these studies, optimal conditions are designed to make the Au/CaO catalyst efficient for the selective epoxidation of styrene. (C) 2013 Elsevier Inc. All rights reserved.</p>10aAu/CaO10aEpoxidation of styrene10agold nanoparticles10aHomogenous deposition precipitation method10aStyrene oxide1 aDumbre, Deepa, K.1 aChoudhary, Vasant, R.1 aPatil, Nilesh, S.1 aUphade, Balu, S.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/calcium-oxide-supported-gold-nanoparticles-catalysts-selective-epoxidation-styrene-t-butyl-001738nas a2200229   4500008004100000022001400041245010400055210006900159260007300228300001000301490000800311520087700319653002301196653002301219653001601242100002201258700002401280700001801304700002601322700002801348856013201376       2014                        eng d  a0926-860X00aMesoporous, ligand free Cu-Fe solid catalyst mediated CS cross coupling of thiols with aryl halides0 aMesoporous ligand free CuFe solid catalyst mediated CS cross cou  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcAPR  a54-600 v4763 a<p>Solid catalyst derived from Cu-Fe hydrotalcite was demonstrated to be a novel, ligandless, efficient and environmentally greener catalyst for the synthesis of diaryl sulfurs from the C-S cross coupling reaction of substituted thiols with different aryl halides. This catalyst has shown higher product yield in the presence of dimethylformamide (as a solvent) and K2CO3 (as a base) at 120 C. Influence of different solvents and bases on the product yield has also been investigated. The catalyst can be easily separated from the reaction mixture, simply by filtration and reused several times without a significant loss of its activity. The catalyst has been fully characterized for its surface and bulk properties and the mesoporous CuO:Fe2O3 phase was attributed for its catalytic activity towards S-arylation reactions. (C) 2014 Elsevier B.V. All rights reserved.</p>10aC-S cross coupling10aCu-Fe-hydrotalcite10aS-arylation1 aDumbre, Deepa, K.1 aSelvakannan, P., R.1 aPatil, S., K.1 aChoudhary, Vasant, R.1 aBhargava, Suresh, Kumar  uhttps://library.ncl.res.in/content/mesoporous-ligand-free-cu-fe-solid-catalyst-mediated-cs-cross-coupling-thiols-aryl-halides-002046nas a2200289   4500008004100000022001400041245010700055210006900162260009500231300001200326490000800338520104400346653001301390653001201403653001801415653002201433653001101455100001701466700001801483700001601501700002001517700002201537700001901559700002801578700002001606856013001626       2016                        eng d  a0021-951700aStudies of synergy between metal-support interfaces and selective hydrogenation of HMF to DMF in water0 aStudies of synergy between metalsupport interfaces and selective  a525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USAbACADEMIC PRESS INC ELSEVIER SCIENCEcAUG  a248-2600 v3403 a<p>Metal-support interfaces play a very important role in heterogeneous catalysis. The interfacial interactions not only are responsible for stabilizing the necessary oxidation state to facilitate the reaction but also enhance the stability of the catalyst system. Nano dispersion of Ni on mesoporous nitrogen-rich carbon material has been achieved using two different synthesis methods. It was observed that nickel (0) gets stabilized by strong interfacial interaction with the nitrogen atoms of the support material, and the material was found to be very economic and efficient for the conversion of HMF to DMF in aqueous medium. The material shows &gt;= 99% conversion to 5-(hydroxymethyl) furfural (HMF) within 6 h of reaction with 98.7% DMF selectivity. A unique correlation between synthesis methods and particle sizes with catalytic performance has been observed for these newly developed materials. Furthermore, a DFT calculation has been performed to predict the reaction mechanism. (C) 2016 Elsevier Inc. All rights reserved.</p>10abiofuels10aBiomass10aHydrogenation10amesoporous carbon10aNi-CNx1 aGoyal, Reena1 aSarkar, Bipul1 aBag, Arijit1 aSiddiqui, Nazia1 aDumbre, Deepa, K.1 aLucas, Nishita1 aBhargava, Suresh, Kumar1 aBordoloi, Ankur  uhttps://library.ncl.res.in/content/studies-synergy-between-metal-support-interfaces-and-selective-hydrogenation-hmf-dmf-water