synthetic intermediates that possess strain energies exceeding those of saturated cyclopropanes by >10 kcal/mol. This report describes a catalytic reductive methylenecyclopropanation reaction of simple olefins, utilizing 1,1-dichloroalkenes as vinylidene precursors. The reaction is promoted by a dinuclear Ni catalyst, which is proposed to access Ni2(vinylidenoid) intermediates via C—Cl oxidative addition.
亚甲基环丙烷是重要的合成中间体,其具有的应变能超过饱和
环丙烷的应变能> 10 kcal / mol。该报告描述了利用1,1-二
氯烯烃作为亚
乙烯基前体的简单烯烃的催化还原性
亚甲基环丙烷化反应。通过双核Ni催化剂促进反应,提出该双核Ni催化剂通过CC -Cl氧化加成而接近Ni 2(
乙烯基类烯基)中间体。