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化学学报
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化学学报 ›› 1980, Vol. 38 ›› Issue (2): 175-184. 上一篇    下一篇

论文

偏氟乙烯与全卤代烷烃的调聚反应及其产物的研究

陈庆云, 马振中, 蒋锡夔, 张元发, 贾世茂   

  1. 中国科学院上海有机化学研究所
  • 投稿日期:1978-06-20 发布日期:2013-06-03

TELOMERIZATIONS OF VINYLIDENE FLUORIDE WITH PERHALOALKANES AND THE STUDY OF THEIR PRODUCTS

CHEN QING-YUN, MA ZHEN-ZHONG, JIANG XI-KUI, ZHANG YUAN-FA, JIA SHI-MAO   

  1. Shanghai Institute of Organic Chemistry, Academia Sinica
  • Received:1978-06-20 Published:2013-06-03

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723

被引次数

6

偏氟乙烯能够分别与四氯化碳和全氟叔丁基碘进行自由基的调聚反应,得到新型的调聚物CCl3(CH2CF2)nCl(n=1～6)和(CF3)3C(CH2CF2)nI(n=1,2).调聚物的结构由核磁共振谱、红外光谱、元素分析和化学转化所证实.反应中亲电自由基·CCl3与·C(CF3)3主要进攻偏氟乙烯上无氟碳原子,亦即在偏氟乙烯的自由基加成中,极性因素对加成方向起决定性作用.

Vinylidene fluoride has been successfully telomerized with carbon tetrachloride and perfluoro-t-butyl iodide as telogens; various new telomerization products and new compounds derived. therefrom have been identified by NMR, IR, elemental analyses and chemical transformations. In agreement with our view that polar factors play an important part in deciding the orientation of free radical additions to vinylidene fluoride, it has been shown that the electrophilic radicals·CCl3and (CF3) 3C ·add to the methylene end of the alkene.