PROCESS FOR THE PREPARATION OF 1,1-BIS(CHLOROPHENYL)-2,2,2-TRICHLOROETHANOL

摘要

PCT No. PCT/FR91/00495 Sec. 371 Date Apr. 20, 1992 Sec. 102(e) Date Apr. 20, 1992 PCT Filed Jun. 20, 1991 PCT Pub. No. WO92/00264 PCT Pub. Date Jan. 9, 1992.The invention relates to a process for the synthesis of 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol in (dicofol) from chlorol and chlorobenzene, in which process the acid by-products formed during the condensation reaction of the chloral and the chlorobenzene are used as reaction medium in the final step for synthesis of dicofol.