Palladium-catalyzed enantioselective arylation of trichloro- or tri-/difluoroacetaldimine precursors
作者:Jian Wei、Zhongjian Du、Xu Wang、Chenlei Ji、Longji Li、Yang’en You
DOI:10.1039/d4cc00022f
日期:——
A palladium-catalyzed asymmetric α-arylation of N-carbamoyl imine precursors containing CCl3, CF3 and CF2H is presented. This protocol provides facile access to a series of chiral α-aryl trichloroethylamines bearing various functional groups, with moderate to high yields (40–82% yield) and high enantioselectivity (80–99% ee).
Rhodium-Catalyzed Asymmetric Hydroarylation of 3-Pyrrolines Giving 3-Arylpyrrolidines: Protonation as a Key Step
作者:Chau Ming So、Satoshi Kume、Tamio Hayashi
DOI:10.1021/ja406169s
日期:2013.7.31
A hydroxorhodium complex coordinated with (R)-segphos was found to catalyze the hydroarylation of 3-pyrrolines with arylboroxines under neutral conditions to give 3-arylpyrrolidines with high enantioselectivity in high yields.