Preparation of the methylwinylperJEuoroalky1 carbinol. The vinyl magnesium chloride was prepared in tetrahydrofuran solvent by the method of Ramsden, et. al. 3 Methyl perfluoroalkyl ketone was added dropwise to the stirred solution of vinyl magnesium chloride at such a rate that the temperature of the reaction mixture did not rise above 50'. The mixture was stirred 1 to 2 hr. and allowed to stand overnight. The Grignard ...