Synthesis of Biphenyl-Based Ligand: Application in Copper-Mediated Chemoselective Michael Reaction
作者:M. Shyam Sundar、Ashutosh V. Bedekar
DOI:10.1080/00397911.2014.946996
日期:2014.12.17
Abstract A biphenyl-based ligand attached was synthesized and screened in copper-mediated Michael reaction. The catalyst system works well with carbon or sulfur nucleophiles as Michael donors and cyclohexenone or chalcones as the acceptors under mild and neutral reaction conditions in a chemoselective manner. GRAPHICAL ABSTRACT
A simple and atom-economic synthesis of highly substituted thiophenes is demonstrated. Heating a solution of a chalcone and a linear/cyclic 1,3-dicarbonyl compound with elemental sulfur in CH3CN in the presence of NEt3 at 80 °C afforded the corresponding substituted thiophenes in good to excellent yields.
Bapat, U. R.; Manjrekar, P. P.; Hosangadi, B. D., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1989, vol. 28, # 1-11, p. 810 - 813
作者:Bapat, U. R.、Manjrekar, P. P.、Hosangadi, B. D.
DOI:——
日期:——
BAPAT, U. R.;MANJREKAR, P. P.;HOSANGADI, B. D., INDIAN J. CHEM. B , 28,(1989) N0, C. 810-813