Ruthenium-Catalyzed [2+2+2] Cycloaddition of 1,6-Enynes and Unactivated Alkynes: Access to Ring-Fused Cyclohexadienes
作者:Rui Liu、Laurent Giordano、Alphonse Tenaglia
DOI:10.1002/asia.201700642
日期:2017.9.5
The [2+2+2] intermolecular carbocyclization reactions between 1,6‐enynes and alkynes catalyzed by [RuCl(cod)(Cp*)] (cod=1,5‐cyclooctadiene, Cp*=pentamethylcyclopentadienyl) are reported to provide bicyclohexa‐1,3‐dienes. The presented reaction conditions are compatible with internal and terminal alkynes and the chemo‐ and regioselectivity issues are controlled by the presence of substituents at the
据报道[RuCl(cod)(Cp *)](cod = 1,5-环辛二烯,Cp * =五甲基环戊二烯基)催化的1,6-烯和炔之间的[2 + 2 + 2]分子间碳环化反应-1,3-二烯 提出的反应条件与内部和末端炔烃相容,化学和区域选择性问题是通过在炔烃配偶体的炔丙基碳中心存在取代基来控制的。