Ib. Rozentsveig et al., Synthesis and properties of N-(2,2,2-trichloroethylidene)and N-(2,2,2-trichloroethyl)nitrobenzenesulfonamides, RUSS J ORG, 37(1), 2001, pp. 87-92
Highly reactive N-(2,2,2-trichloroethylidene)nitrobenzenesulfonamides were
synthesized by reaction of N,N-dichloronitrobenzenesulfonamides with trichl
oroethylene. Reactions of N-(2,2,2-trichlorocthylidene)nitrobenzenesulfonam
ides with oxygen and nitrogen nucleophiles gave products of addition at the
double C=N bond; with arenes and haloarenes, the corresponding C-amidoalky
lation products were obtained.