| abstract |
A compound of the formula: ##STR1## wherein R 1 is a C 1 -C 6 alkyl group, a C 3 -C 7 alkenyl group, a C 3 -C 7 alkynyl group, a halo(C 1 -C 5 )alkyl group, a halo(C 3 -C 4 ) alkenyl group, a halo(C 3 -C 4 )alkynyl group, a C 1 -C 4 alkoxy(C 1 -C 2 )alkyl group, a C 1 -C 2 alkylthio(C 1 -C 2 )alkyl group and R 2 is a hydrogen atom or a methyl group, which is useful as a herbicide. |