| abstract |
Compounds of the formula <IMAGE> in which R represents hydroxyl, (C1-C10)alkoxy, (C1-C6)alkylthio, (C2-C4)alkenyloxy, cyclohexyloxy, cyclopentyloxy, phenoxy or phenylthio both optionally substituted once or twice with halogen, benzyloxy, benzylthio or -O-cat in which "cat" stands for the cation of an inorganic or organic base, have a very good effect on wild oat, barnyard grass, bristle grass and rayegrass in a much lower concentration than known analogous compounds. |