60155-96-6Relevant academic research and scientific papers
Regio- and Stereoselective Diarylation of 1,3-Dienes via Ni/Cr Cocatalysis
Chen, Qing-An,Hu, Yan-Cheng,Ji, Ding-Wei,Li, Ying,Zhang, Wei-Song,Zhang, Xiang-Xin,Zhao, Chao-Yang
, p. 2158 - 2165 (2022/02/14)
Through the formation of the thermodynamically favored Cr(III)-O bond, the Nozaki-Hiyama-Kishi reaction has been widely applied in the functionalization of carbonyl compounds with the help of Ni catalysis. Herein, a divergent regio- and stereoselective diarylation of dienes has been developed under Ni/Cr cocatalysis without the inherent driving force for the formation of polar metal alkoxides. Preliminary experimental studies have been conducted to elucidate the key roles of Ni, Cr, and redox-active bis(imino)pyridine (PDI) ligands. The proposed mechanism suggests that the newly formed C-C bond of this diarylation was created by organonickel species instead of organochromium species.
Copper-catalyzed asymmetric allylic substitution with aryl and ethyl Grignard reagents
Selim, Khalid B.,Yamada, Ken-Ichi,Tomioka, Kiyoshi
supporting information; experimental part, p. 5140 - 5142 (2009/03/11)
Phenyl- and ethyl-magnesium bromides undergo regioselective asymmetric allylic substitution with high enantioselectivity under the catalysis of chiral amidophosphane-copper(i) complexes. The Royal Society of Chemistry.
