作者:David R. Tueting、Antonio M. Echavarren、J.K. Stille
DOI:10.1016/0040-4020(89)80010-9
日期:1989.1
The coupling reaction of organotin reagents with vinyl epoxides, catalyzed by palladium, takes place at ambient temperatures, regioselectively, giving predominately the 1,4-addition product. Both aryl- and vinylstannanes undergo coupling in high yields, while acetylenic, allylic and benzylic tin reagents either give low yields or fail to couple. Although the double bond geometry in the vinylstannane
钯催化的有机锡试剂与乙烯基环氧化物的偶联反应在环境温度下进行区域选择性的反应,主要产生1,4-加成产物。芳基和乙烯基锡烷均以高收率偶联,而炔属,烯丙基和苄基锡试剂收率较低或无法偶联。尽管在偶联产物中保持了乙烯基锡烷配偶中的双键几何形状,但是来自乙烯基环氧化物的双键几何形状是E / Z混合物。在与环状1,3-二烯单环氧化物的偶联反应中,该反应是立体异构的,有机基团从锡配偶体偶联成反式至醇官能团。