| abstract |
ABSTRACT OF THE DISCLOSURE Novel carbamic acid phenyl esters of the formula I (I) (wherein Rl represents Cl-C2-alkoxy-Cl-C2-alkyl, di-Cl-C2-alkoxy-Cl-C2-alkyl, CN-Cl-C2-alkyl, Hal-Cl-C2-alkyl, HO-Cl-C2-alkyl, phenyl-Cl-C2-alkyl, 1,3-dioxolan-2-yl-methyl, 2-methyl-1,3-dioxolan-4-yl-methyl, 4-methyl-1,3-dioxolan-2-yl-methyl, 2,2-dimethyl-1,3-dioxolan-4-yl-methyl or H2N-CO-Cl-C2-alkyl, R2 represents phenyl optionally substituted by 1 or 2 substituents selected from Hal atoms and methyl and methoxy groups and R3 represents Cl-C8-alkyl, C2-C8-alkenyl, cyclopropyl or C13C, or Rl represents methyl or ethyl, R2 represents .alpha.-CN-benzyl or l-CN-2-phenylethyl and R3 represents ethyl) and their manufacture. The noval compounds of the formula I have a herbicidal action and accordingly may be made up with suitable carriers into herbicidal preparations and may be used for protecting living plants and crop areas against weeds. |