4 (3H)-Oxobenzo-2,1,3-thiadiazine-2,2-dioxides

Claim 1

A compound corresponding to the formula: ##SPC3## wherein: each X independently represents halo, Y'R 2 , Y"CF 2 C(Z) 3 , CF 3 , nitro, or loweralkyl, with the proviso that at least one X is always halo or nitro; n represents an integer of from 2 to 4, inclusive; m represents an integer of 1 or 2; R and R 1 each independently represent hydrogen, loweralkyl, haloloweralkyl, cycloalkyl, aryl, benzyl, alkenyl, haloalkenyl, alkynyl, haloalkynyl, --Y'R 2 , --SCCl 3 ; ##EQU1## --NH 2 , --SO 2 aryl, --SO 2 alkyl, --COOR 3 , --C(CH 3 ) 2 C.tbd.CH or --C(CH 3 ) 2 C.tbd.N; R 2 is hydrogen or loweralkyl of from one to about four carbon atoms; R 3 is loweralkyl; each loweralkyl, haloloweralkyl or --SO 2 alkyl group has from one to about six carbon atoms; halo represents any one or more of fluoro, chloro, bromo or iodo; cycloalkyl has from about three to about eight carbon atmos; aryl represents phenyl, methylphenyl or halophenyl; and alkenyl, haloalkenyl, alkynyl and haloalkynyl are each radicals having from about three to about six carbon atoms; each Y, Y' and Y" independently represents a chalcogen group having an atomic number of from 8 to 16, inclusive; each Z independently represents bromo, chloro, fluoro, or hydrogen; and, where at least one of R or R 1 is hydrogen, the salts thereof, with organic or inorganic bases.