3-hydrazino-1,2-benzisothiazole 1,1-dioxide derivatives

Abstract From the Canadian patent

Abstract, Compounds of the formula in which, R1 is alkyl, cycloalkyl, aryl or hydrogen R2 is -Co-R3, R3 is alkyl, alkenyl or cycloalkyl or is, phenyl which is optionally substituted or is alkoxy or benzyl, or is phenoxy which is optionally substituted, or is phenoxymethyl, alkylamino, cycloalkylamino or phenylamlno, or, R1 and R2 together are a group, R4 and R5 each independently is hydrogen alkyl, cycloalkenyl or phenylalkenyl, or is phenyl which is optionally substituted by alkyl, halogen and/or alkoxy, or is furyl, or, R4 and R5 together are alkylene having 4 to 6 carbon atoms, are fungicidally active. Those compounds wherein R3 is alkylamino, cycloalkylamino or phenylamino with the …