A Method for the Catalytic Enantioselective Synthesis of Chiral α-Azido and α-Amino Ketones from Racemic α-Bromo Ketones, and Its Generalization to the Formation of Bonds to C, O, and S
作者:Roberto da Silva Gomes、E. J. Corey
DOI:10.1021/jacs.9b12315
日期:2019.12.26
A new and practical method has been developed for the transformation of racemic α-bromo ketones to chiral α-azido and α-amino ketones with high enantioselectivity using phase transfer, ion-pair mediated reactions with a recoverable chiral quaternary salt (10 mol %) as catalyst in fluorobenzene-water. The process has been generalized to a variety of other attachments including of C, O, S and NHR.
开发了一种新的实用方法,使用相转移、离子对介导的反应与可回收的手性季盐 (10 mol %) 将外消旋 α-溴酮转化为具有高对映选择性的手性 α-叠氮基和 α-氨基酮在氟苯-水中作催化剂。该过程已推广到各种其他附件,包括 C、O、S 和 NHR。