01834nas a2200253   4500008004100000022001400041245019100055210006900246260007300315300001000388490000800398520085200406653001201258653001201270653001701282653001401299653002801313653002001341653002101361100002101382700002101403700002801424856012801452       2007                        eng d  a1381-116900a[SbW9O33]-based polyoxometalate combined with a phase transfer catalyst: A highly effective catalyst system for selective oxidation of alcohols with H2O2, and spectroscopic investigation0 aSbW9O33based polyoxometalate combined with a phase transfer cata  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a52-580 v2623 a<p>Na-9[SbW9O33] in conjunction with a phase transfer catalyst, methyltricapryl ammonium chloride, is highly efficient for selective oxidation of variety of alcohols with aq. H2O2 to yield corresponding carbonyls. Most importantly the reactions are carried out in the absence of any organic solvents especially halogenated solvents. In case of allylic alcohols, the catalyst is highly selective for the alcohol oxidation reaction and least selective for epoxidation reaction in the presence of aq. H2O2. IR studies support the formation of W-peroxo intermediate species and also support the stability of the catalyst in the presence of phase transfer compound under the present experimental condition. The catalyst can be reused after careful decomposition of peroxide of the final reaction mixture. (c) 2006 Elsevier B.V. All rights reserved.</p>10aAlcohol10aAq.H2O210aNag[SbW9O33]10aOxidation10aPhase transfer catalyst10aPolyoxometalate10apolyoxotungstate1 aIngle, Rohit, H.1 aRaj, N., K. Kala1 aManikandan, Palanichamy  uhttps://library.ncl.res.in/content/sbw9o33-based-polyoxometalate-combined-phase-transfer-catalyst-highly-effective-catalyst01285nas a2200241   4500008004100000022001400041245010700055210006900162260005700231300001200288490000800300520042200308653001200730653001200742653002500754653002200779653002000801100002500821700002200846700002400868700002000892856013100912       2015                        eng d  a1011-372X00aDirect synthesis of secondary amines from alcohols and ammonia catalyzed by a ruthenium pincer complex0 aDirect synthesis of secondary amines from alcohols and ammonia c  a233 SPRING ST, NEW YORK, NY 10013 USAbSPRINGERcJAN  a139-1440 v1453 a<p>Efficient and selective direct synthesis of secondary amines from primary alcohols and ammonia with liberation of water has been achieved, with high turnover numbers and with no generation of waste. In case of benzylic alcohols, imines rather than amines are obtained. This atom economical, environmentally benign reaction is homogenously catalyzed by a well-defined bipyridine based Ru(II)-PNN pincer complex.</p>10aAlcohol10aAmmonia10aHomogenous catalysis10aRu-pincer complex10aSecondary amine1 aBalaraman, Ekambaram1 aSrimani, Dipankar1 aDiskin-Posner, Yael1 aMilstein, David  uhttps://library.ncl.res.in/content/direct-synthesis-secondary-amines-alcohols-and-ammonia-catalyzed-ruthenium-pincer-complex-001370nas a2200217   4500008004100000022001400041245008100055210006900136260000900205300001200214490000700226520066000233653002200893653001200915653003000927653003000957653000900987100002100996700002101017856011401038       2015                        eng d  a1566-736700aSelective aerobic oxidation of alcohols over Au-Pd/sodium titanate nanotubes0 aSelective aerobic oxidation of alcohols over AuPdsodium titanate  cJAN   a149-1530 v583 a<p>catalytic application of Au-Pd nanoparticles supported on sodium titanate nanotubes (NaTNTs) for liquid-phase aerobic oxidation of alcohols is reported, for the first time. This reaction occurs at 80-120 degrees C, 1 atm and solvent-/alkali-free conditions yielding the corresponding carbonyls in high selectivity. This catalyst was reusable and found to be more active/selective than the corresponding monometallic Au and Pd catalysts and Au-Pd/TiO2. Higher dispersion, smaller particle size and higher amount of electron density at gold are the causes for the superior activity of Au-Pd/NaTNT catalyst. (C) 2014 Elsevier B.V. All rights reserved.</p>10aaerobic oxidation10aAlcohol10aBimetallic Au-Pd catalyst10aSodium titanate nanotubes10aTiO21 aNepak, Devadutta1 aDarbha, Srinivas  uhttps://library.ncl.res.in/content/selective-aerobic-oxidation-alcohols-over-au-pdsodium-titanate-nanotubes-001530nas a2200241   4500008004100000022001400041245007800055210006900133260000800202300001200210490000700222520076900229653003300998653001201031653002201043653001301065653001401078100001801092700002201110700002601132700002501158856010501183       2020                        eng d  a2155-543500aManganese-catalyzed alpha-olefination of nitriles with secondary alcohols0 aManganesecatalyzed alphaolefination of nitriles with secondary a  cJAN  a947-9540 v103 a<p>An expedient catalytic approach for alpha-olefination of nitriles using secondary alcohols with the liberation of molecular hydrogen and water as the only byproducts is reported. This reaction is catalyzed by a molecularly defined manganese(I) pincer complex and operates in the absence of any hydrogen acceptors. A broad range of substrates including cyclic, acyclic, and benzylic alcohols, as well as various nitrile derivatives, such as arylmethyl and heteroarylmethyl nitriles, are employed in the reaction to provide a diverse range of alpha-vinyl nitriles in good to excellent yields. Mechanistic studies showed that the reaction proceeds via dehydrogenative pathway and the activation of alpha(C-H) bond of the alcohol is the rate-determining step.</p>
10aacceptorless dehydrogenation10aAlcohol10aalpha-olefination10aHydrogen10amanganese1 aYadav, Vinita1 aLandge, Vinod, G.1 aSubaramanian, Murugan1 aBalaraman, Ekambaram  uhttps://library.ncl.res.in/content/manganese-catalyzed-alpha-olefination-nitriles-secondary-alcohols01315nas a2200229   4500008004100000022001400041245011300055210006900168260000900237300001400246490000800260520053100268653003300799653001200832653001100844653001400855653001900869100001800888700002500906700002400931856013000955       2021                        eng d  a1615-415000aPhosphine-free manganese(II)-catalyst enables acceptorless dehydrogenative coupling of alcohols with indoles0 aPhosphinefree manganeseIIcatalyst enables acceptorless dehydroge  cSEP   a4430-44390 v3633 aHerein, an air-stable, molecularly defined NNN-Mn(II) pincer complex catalyzed acceptorless dehydrogenative coupling of alcohols with indoles is reported. A wide variety of symmetrical and unsymmetrical bis(indolyl)methane derivatives as well as some structurally important products such as Vibrindole A, Turbomycin B alkaloid, Antileukemic, and Anticancer agents were synthesized. Mechanistic studies illustrate the importance of the NH moiety in the complex and the crucial role of metal-ligand cooperation during catalysis.10aacceptorless dehydrogenation10aAlcohol10aIndole10amanganese10aphosphine-free1 aYadav, Vinita1 aBalaraman, Ekambaram1 aMhaske, Santosh, B.  uhttps://library.ncl.res.in/content/phosphine-free-manganeseii-catalyst-enables-acceptorless-dehydrogenative-coupling-alcohols