Stereoselective Arylation of Amino Aldehydes: Overriding Natural Substrate Control through Chelation
作者:Bruna S. Martins、Angélica V. Moro、Diogo S. Lüdtke
DOI:10.1021/acs.joc.7b00215
日期:2017.3.17
reaction of chiral, enantiopure acyclic α-amino aldehydes enabled by a B/Zn exchange reaction between arylboronic acids and Et2Zn is reported. The presence of dibenzyl substituents at the nitrogen plays a key role in the stereochemical outcome of the reaction, and chelation is favored over the natural tendency of this type of substrate to undergo Felkin–Anh controlled additions with organomagnesium and organolithium