Journal of fluorine chemistry

Addition of 1, 2-dibromotetrafluoroethane to alkynes by means of a redox system

CM Hu, YL Qiu, FL Qing

Index: Hu, Chang-Ming; Qiu, Yao-Ling; Qing, Feng-Ling Journal of Fluorine Chemistry, 1991 , vol. 51, # 2 p. 295 - 298

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Citation Number: 21

Abstract

Abstract The addition of 1, 2-dibromotetrafluoroethane (1) to various terminal alkynes (2a– 2j) was performed in DMF with a redox system (NH 4) 2 S 2 O 8/HCO 2 Na· 2H 2 O at 40 C. The products (3) were 1: 1 adducts reductively debrominated under the reaction conditions, with the E isomers in predominance, and were obtained in excellent yields (82–93%).