化学学报 ›› 1990, Vol. 48 ›› Issue (6): 596-601. 上一篇    下一篇

研究论文

氟烷基化和氟烷氧基化的研究 32. 铜存在下氟砜基二氟碘甲烷与烯烃的反应─一个电子转移引发同时存在自由基和卡宾的过程

苏德宝;朱蓉仙;裘再明;陈庆云   

  1. 中国科学院上海有机化学研究所
  • 发布日期:1990-06-15

Studies on fluoroalkylation and fluoroalkoxylation 32. the addition reactions of difluoroiodomethane sulfonly fluoride with olefine in the presence of copper-coexistence of radical and carbene processes induced by electron transfer

SU DEBAO;ZHU RONGXIAN;QIU ZAIMING;CHEN QINGYUN   

  • Published:1990-06-15

在催化量的铜粉存在下, 氟砜基二氟碘甲烷在DG、乙酐或不加溶剂时与烯烃反应,得到加成产物(3,4)和三元环产物。对反应机理作了初步探讨, 3,4经自由基加成得到而三元环产物是涉及二氟卡宾中间体。

关键词: 反应机理, 烯烃, 碳烯, 碘甲烷, 氟代烃, 自由基反应, 磺酰基, 二氟甲烷, 单电子转移反应, 氟烷基化

In the presence of copper, difluoroiodomethanesulfonyl fluoride reacted with olefins to give the 1:1 adducts and cyclopropane derivatives The mechanistic study showed that the addition products are formed by a radical chain process, and the others, involving difluorocarbene intermediate.

Key words: REACTION MECHANISM, ALKENE, CARBENE, IODOMETHANE, FLUOROHYDROCARBON, FREE RADICAL REACTION, SULFONYL GROUP, DIFLUOROMETHANE, SINGLE ELECTRON TRANSFER REACTION, FLUOROALKYLATION

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