Benzothiazolones, and their production and use

Details Benzothiazolones, and their production and use Benzothiazolones, and their production and use

C - Chemistry, Metallurgy

07

D

260/309.3

C07D 277/68 (2006.01)

Patent

CA 1330443

ABSTRACT A compound of the formula Image (II) wherein R is a hydrogen atom, a C1-C5 alkyl group, a C3-C4 alkenyl group, a C3-C4 alkynyl group, a halo(C1-C4)alkyl group, a halo- (C3-C4) alkenyl group, a halo(C3-C4)alkynyl group, a C1-C2 alkoxy(C1-C2)alkyl group, a C1-C2 alkoxy-(C1-C2) alkoxy(C1-C2) alkoyl group, a cinnamyl group, a cyano-(C1-C3) alkyl group, a carboxy- (C1-C3)alkyl group, a C1-C5-alkoxycarbonyl(C1-C3)alkyl group, a halo(C1-C5)alkoxy-carbonyl(C1-C3)alkyl group, a C1-C2 alkoxy- (C1-C2)alkoxycarbonyl(C1-C3)alkyl group, a C1-C5 alkoxycarbonyl (C1-C2)alkoxycarbonyl(C1-C3)alkyl group, a cyclo(C3-C6)- alkoxycarbonyl(C1C3)alkyl group, a (C1-C5)-alkylaminocarbonyl- (C1-C3)alkyl group or a di(C1-C5)-alkylaminocarbonyl(C1-C3)alkyl group and A is an amino group or a nitro group. The compound is useful as an intermediate for the preparation of herbicides when reacted with 3,4,5,6-tetrahydro phthalic anhydride.

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