Copper(II)-faciliated synthesis of substituted thioethers and 5-substituted 1H-tetrazoles: Experimental and theoretical studies
作者:Samaresh Layek、Bhumika Agrahari、Shuvankar Dey、Rakesh Ganguly、Devendra D. Pathak
DOI:10.1016/j.jorganchem.2019.06.008
日期:2019.9
thermo-gravimetric (TG) analysis and Cyclic Voltammetry. The molecular structures of both complexes have also been determined by single crystal X-ray crystallography, which confirmed the coordination of Schiffbase ligands through N, O donor atoms and distorted square planar geometry around the Cu(II) ion. Both complexes were found to be good homogeneous catalysts for the synthesis of a wide range of substituted
Copper catalyzed cyanomethylation reaction of 4-thiazolidinone
作者:Prakashsingh M. Chauhan、Mayur I. Morja、Manjoorahmed Asamdi、Kishor H. Chikhalia
DOI:10.1016/j.tetlet.2020.152601
日期:2020.12
An effective coppercatalyzedCrossDehydrogenativeCoupling (CDC) reaction of 4-thiazolidinones with acetonitrile has been developed. The described strategy undergoes radical pathway by employing copper, oxidant and easily available acetonitrile as a cyanomethyl source. Various cyanomethylated 4-thiazolidinone derivatives were obtained easily and conveniently in moderate to good yield by employing
Catalytic asymmetric reductive amination of ketones via highly enantioselective hydrogenation of the CN double bond
作者:Mark J. Burk、Jose P. Martinez、John E. Feaster、Nick Cosford
DOI:10.1016/s0040-4020(01)89375-3
日期:1994.4
a convenient, chemoselective asymmetric reductive amination procedure for the conversion of ketones to chiral hydrazines and amines. The key step in the three-step process is enantioselective DuPHOS-Rh-catalyzed hydrogenation of the CN double bond of N-acylhydrazones. Detailed optimization studies revealed the effect of solvent, temperature, and the N-acyl group on the enantioselectivity and catalytic