A Convenient Synthesis of Aminoacids by ZnBr<sub>2</sub> Promoted Reaction of Ketene <i>bis</i>(Trimethylsilyl) Acetals with Aldimines
作者:M. Mladenova、M. Bellassoued
DOI:10.1080/00397919308009832
日期:1993.3
Abstract The ZnBr2 promoted addition of ketene bis(trimethylsilyl) acetals to aromatic aldimines affords β-arylaminoacids in good to excellent yields. Under the same reaction conditions vinylic ketene bis(trimethylsilyl) acetals give exclusively or mainly δ - phenylaminoacids.