Rhodium/Lewis Acid Catalyzed Regioselective Addition of 1,3-Dicarbonyl Compounds to Internal Alkynes
作者:Wei-Feng Zheng、Qiu-Jing Xu、Qiang Kang
DOI:10.1021/acs.organomet.7b00284
日期:2017.6.26
regioselective addition of 1,3-dicarbonyl compounds to internal alkynes catalyzed by rhodium/Lewis acid catalysts. The corresponding branched/linear allylic alkylation products could be selectively obtained in good yields. Rh–H species were considered to be generated by direct C–H oxidative addition of 1,3-dicarbonyl compounds with rhodium catalyst with the assistance of Lewis acid. Moreover, a retro-allylic
在本文中,我们描述了将铑/路易斯酸催化剂将1,3-二羰基化合物区域选择性加成至内部炔烃的有效方案。可以高收率选择性地获得相应的支链/线性烯丙基烷基化产物。Rh-H物质被认为是通过在路易斯酸的辅助下用铑催化剂直接1,H-二羰基化合物的CH-H氧化加成反应而产生的。此外,在该转化中观察到了逆烯丙基烷基化过程。