Each compound 7 was added, in CC1, solution, to a twofold excess of A1C13 slurried in CC14, at 40". After 2 hr the trichloromethyl compounds were isolated and methanolyzed, and the resulting methyl esters were separated (vpc), analyzed, and identified by comparison with authentic samples. Isolated yields of esters were 90% or greater; no tars or undesirable side products were produced.
