中文摘要：

1,2-丙二烯衍生物因含有累积双键在过渡金属参与的反应中显示出独具魅力的反应活性.文章以烯烃为原料,采取改进的偕二溴环丙烷脱溴-卡宾重排的方法合成系列1,2-丙二烯.该方法具有产率高、操作简便、反应条件温和、副反应少等优点.化合物（3）经IR、1HNMR、13CNMR及MS确证.

英文摘要：

1,2-propadiene,involving cumulative double bonds,has attached much attention and shown unique reactivity in numerous protocols addressed by transition metals.The use the olefins as the starting materials,and synthetizes 1,2-propadiene via the debromonation and carbene rearrangement of gem-bisbromocyclopropane,which has the advantages of high yield,safety,easily handle and few side reaction.The compounds 3 are verified by IR、1H NMR、13C NMR and MS.