Asymmetric Organocatalytic 1,6-Conjugate Addition of Aldehydes to Dienic Sulfones
作者:John J. Murphy、Adrien Quintard、Patrick McArdle、Alexandre Alexakis、John C. Stephens
DOI:10.1002/anie.201100804
日期:2011.5.23
An unprecedented 1,6‐enamine conjugate addition exploiting the charge delocalization in 1,3‐bis(sulfonyl) butadienes has been developed. By appropriately designing a Michael acceptor, unique reactivities were obtained for the formation of highly valuable dienes containing two versatile vinyl sulfones (see scheme, TMS=trimethylsilyl).
利用1,3-双(磺酰基)丁二烯中电荷的离域作用,开发了前所未有的1,6-烯胺共轭物。通过适当设计迈克尔受体,获得了独特的反应性,可用于形成含有两种通用乙烯基砜的高价值二烯(参见方案,TMS =三甲基甲硅烷基)。