Formation, Alkylation, and Hydrolysis of Chiral Nonracemic <i>N</i>-Amino Cyclic Carbamate Hydrazones: An Approach to the Enantioselective α-Alkylation of Ketones
作者:Uyen Huynh、Stacey L. McDonald、Daniel Lim、Md. Nasir Uddin、Sarah E. Wengryniuk、Sumit Dey、Don M. Coltart
DOI:10.1021/acs.joc.8b00655
日期:2018.11.2
as α-functionalized ketones or derivatives thereof. We previously reported our preliminary studies on the development of a new enantioselective ketone α-alkylation procedure using N-amino cyclic carbamate (ACC) auxiliaries. In comparison to other auxiliary-based methods, ACC alkylation offers a number of advantages and is both highly enantioselective and high yielding. Herein, we provide a full account
酮的α-烷基化是基本的合成转化。鉴于许多天然产物,药物和相关化合物以α-官能化的酮或其衍生物形式存在,因此开发该反应的不对称变体非常重要。我们以前曾报道过使用N-氨基环状氨基甲酸酯(ACC)助剂开发新的对映选择性酮α-烷基化程序的初步研究。与其他基于辅助方法的方法相比,ACC烷基化具有许多优势,并且具有高对映选择性和高收率。在此,我们全面介绍了对映选择性ACC酮α-烷基化方法的研究。