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化学学报
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化学学报 ›› 1982, Vol. 40 ›› Issue (4): 331-336. 上一篇    下一篇

论文

全氟和多氟烷基磺酸的研究Ⅲ.1-氯-2-碘四氟乙烷与四氟乙烯的热调聚反应及其产物的化学转化

张元发, 郭彩云, 周新月, 陈庆云   

  1. 中国科学院上海有机化学研究所
  • 投稿日期:1980-12-15 发布日期:2013-06-03
  • 通讯作者: 张元发

PERFLUORO AND POLYFLUOROSULFONIC ACIDS Ⅲ. THE THERMAL TELOMERIZATION OF 1-CHLORO-2-IODOTETRAFLUOROETHANE WITH TETRAFLUOROETHYLENE AND CHEMICAL TRANSFORMATION OF ITS PRODUCTS

ZHANG YUAN-FA, GUO CAI-YUN, ZHOU XIN-YUE, CHEN QING-YUN   

  1. Shanghai Institute of Organic Chemistry, Academia Sinica
  • Received:1980-12-15 Published:2013-06-03

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1-氯-2-碘四氟乙烷易与四氟乙烯进行热调聚反应,形成低分子量调聚物,Cl(CF2CF2)nI(n=2～5),可以蒸馏分离.在低温下调聚物与普通格氏试剂反应得氯氟烷基卤化镁,再由它获得ω-氯代全氟烯烃-1Cl(CF2CF2)nCF=CF2(n=1,2,3)、ω-氯代全氟烷基醇Cl(CF2CF2)nCR'R"OH(R'=CH3,R"=H;R'=R"=CH3;R'=R"=CF3;n=2,3)及ω-氯代全氟烷基磺酰氯Cl(CF2CF2)nSO2Cl(n=2,3,4).通过ω-氯代全氟羧酸甲酯与甲基碘化镁的反应也得到ω-氯代全氟烷基醇Cl(CF2CF2).CF2C(CH3)2OH(n=1,2).ω-氯代全氟烷基磺酸钾是稳定性很好的表面活性剂,可用作电镀镀铬中的铬雾抑制剂.

1-Chloro-2-iodotetrafluoroethane was readily telomerized with tatrafluoroethylene giving low molecular weight telomers,Cl(CF2CF2)nI(n=2～5),whioh were readily separated by fraotional distillation.Through the metal-halogen ezahanga reaction between those telomers and a Grignard reagent,relatively stable cblorofluoroalkylmagnesium halide has been synthesized at low temperature.From the reactions of these chlorofluoroalkylmagnesium halides,ω-hloroperfluoroalkene-1,Cl(CF2CF2)nCF=CF2(n=1,2,3).ω-chloroperfluoroalkyl aarbinols,Cl(CF2CF2)nCR'R"OH(R'=CH3,R"=H;R'=R"=CH3;R'=R"=CF3;n=2,3) and ω-ohlorofluoroalkanesulfonyl chloride have been prepared.Methylmagnesium iodide reacted with methyl ω-hlorofluoroalkanoate yielding oarbinol Cl(CF2CF2).CF2C(CH3)2OH(n=1,2).Potassium chloroporfluoroalkanesulfonates are good surfactants which has been applied to the chromium electroplating as a chromic said-mist suppressant.