作者:Tomoya Miura、Takayuki Nakamuro、Kentaro Hiraga、Masahiro Murakami
DOI:10.1039/c4cc04786a
日期:——
A new procedure for the stereoselective synthesis of syn alpha-amino beta-oxy ketones is reported. It consists of two steps; in the first step, alpha-amino silyl enol ethers having a (Z) geometry are prepared from 1-alkynes via 1-sulfonyl-1,2,3-triazoles. In the second step, the silyl enol ethers undergo the TiCl4-mediated Mukaiyama aldol reaction with aldehydes to produce alpha-amino beta-oxy ketones
报道了一种立体选择性合成顺式α-氨基β-氧基酮的新方法。它包括两个步骤;在第一步中,通过1-磺酰基-1,2,3-三唑由1-炔烃制备具有(Z)几何形状的α-氨基甲硅烷基烯醇醚。在第二步中,甲硅烷基烯醇醚与醛进行TiCl4介导的Mukaiyama醛醇缩醛反应,以产生具有出色的顺选择性的α-氨基β-氧基酮。