Rhodium-Catalyzed Homocoupling of (1-Acyloxyvinyl)silanes: Synthesis of 1,3-Diene-2,3-diyl Diesters and Their Derivatives
作者:Motoki Yamane、Yanni Yue、Hiroki Yamamoto
DOI:10.1055/s-0029-1217968
日期:2009.10
1,3-Diene-2,3-diyl diesters are synthesized by rhodium-catalyzed homocoupling of (1-acyloxyvinyl)silanes. Double transmetalation between vinylsilane and rhodium intermediate in a single catalytic cycle is the key in this reaction. From the homocoupling products, symmetrical α-diketone and its monoacetal are easily synthesized.
1,3-二烯-2,3-二酯是通过铑催化 (1-acyloxyvinyl)silanes 的均偶联反应合成的。乙烯基硅烷和铑中间体在一个催化循环中发生双反金属化是该反应的关键。从均偶联产物中很容易合成对称的 δ-二酮及其单缩醛。