We previously showed [1, 2] that reactions of N, N-dichloroarenesulfonamides with 1, 2- dichloroethylene under conditions of thermal, chemical, or photochemical initiation lead to formation of mixtures of N-(2, 2-dichloroethylidene) arenesulfonamides, 1, 1-bis (arylsulfonylamino)-2, 2-dichloroethanes, and N-(2, 2, 2-trichloroethylidene) arenesulfonamides; the yield of the latter products can attain 30%. We now report for the ...
