By the comparison of the reaction products of gem-dihalocyclopropanes under various conditions,it is suggested that similar to the reactions with metals,the reactive radical intermediates which make the reaction resul...By the comparison of the reaction products of gem-dihalocyclopropanes under various conditions,it is suggested that similar to the reactions with metals,the reactive radical intermediates which make the reaction results complicated are formed in the reactions of gem-dihalocyclopropanes with alkyl lithium.Studies on the competitions between ring opening and intramolecular C—H insertions of cyclopropylidenes generated by the reactions of gem-dihalocyclopropanes with metals and discussions on the reaction mechanism are also given in this paper.展开更多
文摘By the comparison of the reaction products of gem-dihalocyclopropanes under various conditions,it is suggested that similar to the reactions with metals,the reactive radical intermediates which make the reaction results complicated are formed in the reactions of gem-dihalocyclopropanes with alkyl lithium.Studies on the competitions between ring opening and intramolecular C—H insertions of cyclopropylidenes generated by the reactions of gem-dihalocyclopropanes with metals and discussions on the reaction mechanism are also given in this paper.