The formation of a nickeladihydrofuran by oxidative cyclization of an alkyne and an aldehyde with nickel(0) has been demonstrated; the transformation of the nickeladihydrofuran into an enone by decomposition, a lactone by carbonylation and an allylic alcohol by treatment with ZnMe2 suggests that nickeladihydrofuran is an important key intermediate in a variety of catalytic reactions.
通过
炔烃和醛与
镍(0)的氧化环化作用,证明了
镍二氢
呋喃的形成;
镍二氢
呋喃通过分解转化为烯酮、通过羰基化转化为内酯以及通过 ZnMe2 处理转化为烯丙基醇,表明
镍二氢
呋喃是各种催化反应中重要的关键中间体。