Copper-Catalyzed Borylative Multicomponent Synthesis of Quaternary α-Amino Esters
作者:Kay Yeung、Fabien J. T. Talbot、Gareth P. Howell、Alexander P. Pulis、David J. Procter
DOI:10.1021/acscatal.8b04563
日期:2019.3.1
Copper-catalyzed coupling of readily available ketiminoesters, allenes, and a diboron affords densely functionalized quaternary α-amino esters bearing adjacent stereocenters and versatile vinyl boronate motifs. The method utilizes a commercially available copper(I) catalyst, operates at ambient temperature, and features a catalytic allyl cupration of ketiminoesters.
铜催化的易于获得的酮亚氨基酸酯,丙二烯和乙硼烷的偶联提供了密集的官能化季α-氨基酯,带有相邻的立体中心和通用的乙烯基硼酸酯基序。该方法利用可商购的铜(I)催化剂,在环境温度下操作,并且具有酮亚氨基酸酯的催化烯丙基铜化。