Catalytic asymmetric synthesis of axially chiral 2-amino-1,1′-biaryl compounds by phase-transfer-catalyzed kinetic resolution and desymmetrization
作者:Seiji Shirakawa、Xiangfei Wu、Shiyao Liu、Keiji Maruoka
DOI:10.1016/j.tet.2015.10.074
日期:2016.8
methodology for kinetic resolution of axially chiral 2-amino-1,1′-biaryl compounds as useful chiral building blocks was developed by means of binaphthyl-modified chiral quaternary ammonium salt-catalyzed N-allylations under phase-transfer conditions. The catalyst structure and reaction conditions were carefully optimized to achieve the highly selective kinetic resolutions. Various types of 2-amino-1,1′-biaryls
通过在相转移条件下双萘基修饰的手性季铵盐催化的N-烯丙基化反应,开发了一种有效的动力学方法,用于轴向拆分手性2-氨基-1,1'-联芳基化合物的轴向手性。仔细优化了催化剂的结构和反应条件,以实现高选择性的动力学拆分。在相转移条件下,将各种类型的2-氨基-1,1'-联芳基用于动力学拆分,以高选择性拆分对映体。该方法的合成用途可以扩展到二氨基联芳基化合物的不对称脱对称,以获得具有高对映选择性的相应的轴向手性联芳基。