The Ir(III) complex [Ir2H2I3((rac)-Binap)2]+I− efficiently promotes the selective dimerization of 1,6-, 1,7-enynes and functionalized alkynes. This catalytic process results in the formation of head-to-head isomers with (E)-stereoselectivity. Subsequent Rh-catalyzed cycloisomerization under reductive conditions led to the corresponding 1,2-dialkylidenecyclopentane derivatives.
铱(III)络合物[Ir2H2I3((rac)-Binap)2]+I−能有效促进1,6-、1,7-烯炔和功能化炔的选择性二聚反应。这一催化过程形成了具有(E)-立体选择性的头对头异构体。随后在还原条件下的Rh催化环异构化反应中,得到了相应的1,2-二烷亚基
环戊烷衍
生物。