丙烯酰氯,醛和PhSLi在MgBr2 x OEt2存在下通过原位衍生的硫酯烯酸酯进行直接的羟醛级联反应,然后氧化消除得到α-烯基-β'-羟基硫代酯。总的来说,该方法甚至对于β-取代的丙烯酰氯也是快速,有效和普遍适用的,因此提供了具有更大的合成范围和实用性的Morita-Baylis-Hillman反应的替代品。
Overcoming the Limitations of the Morita−Baylis−Hillman Reaction: A Rapid and General Synthesis of α-Alkenyl-β′-hydroxy Thioesters
作者:Emily Tarsis、Anna Gromova、Daniel Lim、Guoqiang Zhou、Don M. Coltart
DOI:10.1021/ol801896q
日期:2008.11.6
undergo a direct aldol cascade sequence in the presence of MgBr2 x OEt2 via in situ derived thioester enolates, which is followed by oxidative elimination to give alpha-alkenyl-beta'-hydroxy thioesters. Overall, the procedure is rapid, efficient, and generally applicable, even to beta-substituted acryloyl chlorides, thus providing an alternative to the Morita-Baylis-Hillman reaction with substantially
丙烯酰氯,醛和PhSLi在MgBr2 x OEt2存在下通过原位衍生的硫酯烯酸酯进行直接的羟醛级联反应,然后氧化消除得到α-烯基-β'-羟基硫代酯。总的来说,该方法甚至对于β-取代的丙烯酰氯也是快速,有效和普遍适用的,因此提供了具有更大的合成范围和实用性的Morita-Baylis-Hillman反应的替代品。