Vinylcyclopropanes react with octacarbonyldicobalt stoichiometrically under mild conditions to give cyclohex-3-enones in moderate to good yields (51-75%). Catalytic amounts of the cobaltcarbonyl complex or a rhodiumcarbonyl complex also mediate [5+1] cocyclizations of vinylcyclopropanes with carbon monoxide (under CO balloon pressure) to give cyclohex-3-enones in good yields (up to 95%).
在温和的条件下,
乙烯基环丙烷与八羰基二
钴按比例发生反应,生成中到高产率(51-75%)的环己-3-烯酮。催化量的
羰基钴络合物或羰基
铑络合物还能介导
乙烯基环丙烷与
一氧化碳(在
一氧化碳气球压力下)发生 [5+1] 环化反应,从而以良好的收率(高达 95%)生成环己-3-烯酮。