摘要/Abstract

1，2-双碘取代烯烃，因具有高度官能团衍生性，可作为多种杂环药物和有机共轭材料功能分子的合成前体.本工作以稳定易得的无机盐碘化钠作为碘源，空气作为氧化剂，仅仅在常温常压可见光（蓝光）照射下，即可将炔烃高选择性且方便地转化为反式1，2-双碘烯烃化合物.反应条件温和，试剂廉价易得，操作简便稳定，无需额外添加其他过渡金属催化剂或氧化试剂.同时，该法底物普适性优秀，端炔、内炔均适用，并且对于多种含杂原子与活性氢的肽或糖类结构也能优秀地兼容
关键词: 1,2-双碘烯烃, 炔烃, 双碘化, 可见光
1,2-Diiodoalkenes can be used as precursors for synthesis of functional molecules such as heterocyclic drugs and organic conjugated materials due to their derivability of functional groups. Herein, alkynes can be converted into 1,2-trans-diiodioalkenes efficiently and conveniently by using inexpensive and stable sodium iodide as iodine source and air as oxidant under the visible-light (blue light) with normal temperature and atmospheric pressure. The corresponding reactions were operated under mild conditions with inexpensive and easily accessible reagents, which obviate the need of transition-metal-catalysts or oxidizing reagents. Meanwhile, this method is compatible with a wide range of substrates, including terminal and internal alkynes even the peptide and carbohydrates containing a variety of heteroatoms and active hydrogen.
Key words: 1,2-diiodoalkenes, alkynes, diiodination, visible-light


PDF全文下载地址:

点我下载PDF