| 摘要 |
<p>There are described novel compounds of the formula I wherein A represents one of the groups and Ia Ib in which R2 signifies hydrogen, halogen or trifluoromethyl and R3 signifies hydrogen, halogen or trifluoromethyl, m signifies 1 or 2, B signifies -CH= or nitrogen, and wherein R1 represents the group Id wherein R6 and R7 signify lower alkyl, cycloalkyl with 3 to 6 carbon atoms, lower alkylcarbonyloxy-lower alkyl, lower alkoxy or lower alkylthio or R6 and R7 together with the carbon atom to which they are attached signify a cycloalkyl group with 3 to 7 carbon atoms, wherein n signifies 1 or 2, and wherein R6 can also signify hydrogen. The manufacture of these compounds and their use as herbicides are also described.</p> |
