Organophosphorus chemistry. Part 21 [1]. Insertion of olefins into P CF3 bonds
作者:Peter Cooper、Roy Fields、Robert N. Haszeldine、Gordon H. Mitchell、Shmaiel N. Nona
DOI:10.1016/s0022-1139(00)81516-x
日期:1982.11
regiospecific, and the yield of 1:1 adduct was low. In these reactions, and in those with vinyl chloride, but-1-ene, and hexafluoropropene, in which only traces of 1:1-adduct could be detected, the bulk of the olefin and of the phosphine was recovered, and numerous by-products consistent with radical intermediates were identified. With propyne, 1,1,1-trifluoro-3-bis(trifluoromethyl)phosphino-cis-but-2-ene was obtained
三(三氟甲基)膦和乙烯在紫外线照射下有效反应,以良好的收率得到3,3,3-三氟丙基双(三氟甲基)膦。对于氟乙烯,偏二氟乙烯和丙烯,该反应是区域选择性的而不是区域特异性的,并且1:1加合物的收率很低。在这些反应中,以及在与氯乙烯,丁-1-烯和六氟丙烯的反应中,仅能检测到痕量的1:1加合物,大部分烯烃和膦被回收,许多副产物是-鉴定出与自由基中间体一致的产物。用丙炔,以中等收率获得了1,1,1-三氟-3-双(三氟甲基)膦基顺式丁二烯,但是膦与丁-2-炔或六氟丁二烯之间没有反应发生。恩