N',N'-disubstituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxides

Claim 1

A substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxide of the formula ##STR8## where X denotes halogen or a ##STR9## --O--R 2 , --SR 3 , or 2,4-dinitro-6-bromoanilino, o-cyanoanilino, o-nitroanilino, o-bromo-p-nitroanilino, and N-methyl-(o-bromo-p-nitroanilino), R 1 denoting alkyl, alkenyl, alkynyl, alkoxyalkyl, haloalkyl, cycloalkyl, aralkyl, or aryl, R 2 denoting O,O-dialkylthiophosphoro, O,S-dialkylphosphoro, S,S-dialkylphosphoro, O,O-dialkylthiophosphoro, O,S-dialkylthiophosphoro, S,S-dialkylthiophosphoro, aralkyl, aryl, or phenyl substituted by chlorine, nitro, lower alkyl, lower alkoxy, lower alkoxycarbonylamino or diloweralkylureido and R 3 having the same meanings as R 1 and additionally denoting O,O-dialkylthiophosphoro, O,S-dialkylthiophosphoro, S,S-dialkylthiophosphoro, O,O-dialkylphosphoro, O,S-dialkylphosphoro and S,S-dialkylphosphoro.