Synthesis of 2-Substituted 2-Amino Ketones by Rhodium-Catalyzed Reaction of<i>N</i>-Sulfonyl-1,2,3-triazoles with 2-Alkenols
作者:Tomoya Miura、Takamasa Tanaka、Qiang Zhao、Scott G. Stewart、Masahiro Murakami
DOI:10.1002/hlca.201600320
日期:2017.2
A study on a rhodium(II)‐catalyzed reaction of N‐sulfonyl‐1,2,3‐triazoles with 2‐alkenols is reported. The reaction is initiated by insertion of an α‐imino carbene into the O–H linkage of alcohol, forming a 2‐alkenoxy enamide intermediate. A thermal [3,3]‐sigmatropic rearrangement follows to yield 2‐substituted 2‐amino ketone in a stereoselective manner. The successful application of this methodology
据报道,铑(II)催化N-磺酰基-1,2,3-三唑与2-烯醇的反应。通过将α-亚氨基卡宾插入醇的OH键中,形成2-烯氧基烯酰胺中间体,从而引发反应。随后发生热[3,3]-σ重排,以立体选择性方式产生2-取代的2-氨基酮。还介绍了该方法在(-)- α- conhydrine形式合成中的成功应用。