Ashis kumar jena (8 risultati)

Condizione: New.

Condizione: New.

Condizione: New.

Taschenbuch. Condizione: Neu. Cu/Fe-catalyzed cross-coupling reactions: Enroute to heterocycles | Ashis Kumar Jena | Taschenbuch | 232 S. | Englisch | 2014 | LAP LAMBERT Academic Publishing | EAN 9783659610172 | Verantwortliche Person für die EU: preigu GmbH & Co. KG, Lengericher Landstr. 19, 49078 Osnabrück, mail[at]preigu[dot]de | Anbieter: preigu.…

Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -This book described the Cu/Fe catalyzed Carbon-Carbon and Carbon-Heteroatom Cross-Coupling reactions. The catalytic applications of the synthesized CuFe2O4 nanoparticles were explored for various cross-coupling reactions. Terminal alkynes underwent cross-coupling reactions with aryl iodides in presence of base and CuFe2O4 nanoparticles under ligand free conditions. N-arylation of various NH-heterocycles with differently substituted aryl halides (X = I, Br, Cl) were investigated. Catalytic efficiency of CuFe2O4 nanoparticles was further exploited for the C-S cross-coupling of aryl and alkyl thiols with aryl halides. The superparamagnetic nature of CuFe2O4 nanoparticles was found to be advantageous for their easy, quick and quantitative separation from the reaction mixture. Negligible leaching of Cu and Fe in consecutive cycles makes the catalyst economically and environmentally benign. Scope of this catalytic protocol further extended to one-pot synthesis of tricyclic dibenzothiazepines. Furthermore, an expedite Fe-catalyzed, regioselective synthesis of 1,3- and 1,3,5-substituted pyrazoles from diaryl hydrazones and vicinal diols have been described. 232 pp. Englisch.…

Condizione: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Autor/Autorin: Jena Ashis KumarDr. Ashis Kumar Jena obtained his Ph.D from National Institute of Technology, Rourkela, India. His area of interest is transition metal mediated organic synthesis. He is presently working as Assistant Professor (Contr.…

Taschenbuch. Condizione: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - This book described the Cu/Fe catalyzed Carbon-Carbon and Carbon-Heteroatom Cross-Coupling reactions. The catalytic applications of the synthesized CuFe2O4 nanoparticles were explored for various cross-coupling reactions. Terminal alkynes underwent cross-coupling reactions with aryl iodides in presence of base and CuFe2O4 nanoparticles under ligand free conditions. N-arylation of various NH-heterocycles with differently substituted aryl halides (X = I, Br, Cl) were investigated. Catalytic efficiency of CuFe2O4 nanoparticles was further exploited for the C-S cross-coupling of aryl and alkyl thiols with aryl halides. The superparamagnetic nature of CuFe2O4 nanoparticles was found to be advantageous for their easy, quick and quantitative separation from the reaction mixture. Negligible leaching of Cu and Fe in consecutive cycles makes the catalyst economically and environmentally benign. Scope of this catalytic protocol further extended to one-pot synthesis of tricyclic dibenzothiazepines. Furthermore, an expedite Fe-catalyzed, regioselective synthesis of 1,3- and 1,3,5-substituted pyrazoles from diaryl hydrazones and vicinal diols have been described.…

Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -This book described the Cu/Fe catalyzed Carbon-Carbon and Carbon-Heteroatom Cross-Coupling reactions. The catalytic applications of the synthesized CuFe2O4 nanoparticles were explored for various cross-coupling reactions. Terminal alkynes underwent cross-coupling reactions with aryl iodides in presence of base and CuFe2O4 nanoparticles under ligand free conditions. N-arylation of various NH-heterocycles with differently substituted aryl halides (X = I, Br, Cl) were investigated. Catalytic efficiency of CuFe2O4 nanoparticles was further exploited for the C-S cross-coupling of aryl and alkyl thiols with aryl halides. The superparamagnetic nature of CuFe2O4 nanoparticles was found to be advantageous for their easy, quick and quantitative separation from the reaction mixture. Negligible leaching of Cu and Fe in consecutive cycles makes the catalyst economically and environmentally benign. Scope of this catalytic protocol further extended to one-pot synthesis of tricyclic dibenzothiazepines. Furthermore, an expedite Fe-catalyzed, regioselective synthesis of 1,3- and 1,3,5-substituted pyrazoles from diaryl hydrazones and vicinal diols have been described.VDM Verlag, Dudweiler Landstraße 99, 66123 Saarbrücken 232 pp. Englisch.…