Synthesis of 4-substituted 6-dinitrobenzo[d]isothiazoles from 2,4,6-trinitrotoluene

The synthesis of 4,6-dinitrobenzo[d]isothiazole from a product obtained by the replacement of the ortho-NO₂ group in N-2,4,6-trinitrobenzylidene-4’-N,N-dimethylaminoaniline on treatment with PhCH₂SH was developed.