Rh(II)-Catalyzed Reactions of Diazoesters with Organozinc Reagents
作者:Robert Panish、Ramajeyam Selvaraj、Joseph M. Fox
DOI:10.1021/acs.orglett.5b01836
日期:2015.8.21
Rh(II)-catalyzed reactions of diazoesters with organozinc reagents are described. Diorganozincreagents participate in reactions with diazo compounds by two distinct, catalyst-dependent mechanisms. With bulky diisopropylethyl acetate ligands, the reaction mechanism is proposed to involve initial formation of a Rh-carbene and subsequent carbozincation to give a zinc enolate. With Rh2(OAc)4, it is proposed that initial