摘要 |
<p>A compound of the general formula <IMAGE> wherein R1 is lower alkyl, R2 is selected from the group consisting of lower alkyl, lower alkenyl and lower alkynyl, A is a formula which is selected from the formula consisting of: <IMAGE> (1) where R3 is selected from the group consisting of hydrogen and lower alkyl, R4 is selected from the group consisting of lower alkyl and phenyl, and R3 forms cyclo-alkylene of 4 to 5 carbon atoms by combining with R4; <IMAGE> (2) where R5 and R7 are selected from the group consisting of hydrogen and lower alkyl and R6 is lower alkyl; and <IMAGE> (3) where R8 is selected from the group consisting of hydrogen and lower alkyl and R9 is lower alkyl; OR A METAL SALT OF THE COMPOUND DEFINED HEREIN ABOVE IS USEFUL AS HERBICIDE.</p> |