Intermolecular cobalt-mediated [2 + 2 + 2]cycloadditions : regiospecific one-step construction of bicyclic dienes from α,ω-enynes and alkynes
作者:Chu-An Chang、Joseph A. King、K. Peter C. Vollhardt
DOI:10.1039/c39810000053
日期:——
α,ω-Enynes are co-cyclised with alkynes and stoicheiometric amounts of dicarbonyl(cyclopentadienyl) cobalt to furnish bicyclic-diene cobalt complexes and their free ligands regiospecifically, the former being convertible into the latter by oxidative demetallation.
α,ω-烯炔与
炔烃和
化学计量的二羰基(
环戊二烯基)
钴共环化以提供双环二烯
钴配合物及其区域特异性的游离
配体,前者可通过氧化脱
金属作用转化为后者。