摘要/Abstract
以五氧化二碘为自由基引发剂和碘源，炔烃和磺酰肼为反应原料，发展了一种高效的自由基碘磺酰化反应合成（E）-β-碘代烯基砜方法.在温和的条件下，能以良好到优秀的收率得到结构多样的β-碘代烯基砜类化合物.与文献报道方法相比，该方法无需过氧化物条件即可完成，更加绿色环保.
关键词: 五氧化二碘, 炔烃, 磺酰肼, 碘磺酰化反应, (E)-β-碘代烯基砜
A facile and efficient I2O5 promoted iodosulfonylation of alkynes for direct synthesis of (E)-β-iodovinyl sulfones is described. This procedure affords various synthetically useful β-iodosulfonyl alkenes in moderate to good yields under peroxide free conditions.
Key words: I2O5, alkyne, sulfonylhydrazide, iodosulfonylation, (E)-β-iodovinyl
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