作者:Chang-Ming Hu、Yao-Ling Qiu、Feng-Ling Qing
DOI:10.1016/s0022-1139(00)80300-0
日期:1991.2
The addition of 1,2-dibromotetrafluoroethane (1) to various terminal alkynes (2a – 2j) was performed in DMF with a redox system (NH4)2S2O8/HCO2Na·2H2O 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%).
在DMF中,在40°C的氧化还原体系(NH 4)2 S 2 O 8 / HCO 2 Na·2H 2 O中,向各种末端炔烃(2a – 2j)中添加1,2-二溴四氟乙烷(1)。产物(3)是在反应条件下以1:1还原脱溴的加合物,其中E异构体占优势,并以极好的收率(82 – 93%)获得。