Aromatic polyfluoro-compounds. Part XXXI. The synthesis and reactions of some halogenomethylpentafluorophenylmethanols and routes to some pentafluorophenylacetylenes
作者:P. L. Coe、R. G. Plevey、J. C. Tatlow
DOI:10.1039/j39660000597
日期:——
Pentafluorophenylmagnesium bromide reacted with trichloro-, dichloro-, chlorodifluoro-, bromo-, and trifluoro-acetaldhyde to form the corresponding halogenomethylpentafluorophenylmethanols. These alcohols on oxidation afforded ketones, which underwent haloform cleavage, whilst with phosphorus pentachloride they gave the expected chloropentafluorophenylethanes in good yield. Dehydrohalogenation or dehalogenation
五氟苯基溴化镁与三氯,二氯,氯二氟,溴和三氟乙醛反应生成相应的卤代甲基五氟苯基甲醇。这些醇氧化后得到酮,将其进行卤仿裂解,同时与五氯化磷一起以良好的收率得到预期的氯五氟苯基乙烷。后者的脱卤化氢或脱卤化作用提供了生成五氟苯基-和氯五氟苯基-乙炔的途径。