| abstract |
Compounds of formulan wherein R is H or CH 3 n G is O or NR 1 R 1 is H, C 1 to C 3 alkyl, CF 2 H, C 2 to C 3 alkyl substituted with 1 to 3 atoms of F, CH 2 CH 2 0CH 3 , CH 2 CH 2 0H, CH 2 CH 2 OSi(CH 3 ) 3 , OH, OSi(CH 3 ) 3 , C 1 to C 2 alkoxy, SO 2 CH 3 , phenyl or benzyl; L is a substituted or unsubstituted phenyl, naphthyl, pyridyl, thienyl, pyrazolyl or imidazolyl group or bicyclic derivative thereof; nand A is substituted or unsubstituted mono- or bi-cyclic heterocyclic group nand their agriculturally suitable salts show potent herbicidal activity. Many also show a plant growth regulant effect.n The compounds may be formulated into compositions for agricultural use in conventional manner. They may be prepared by a variety of synthetic routes. |