| 摘要 |
The invention relates to new herbicidal compounds having the formula:- …<CHEM>… wherein:… A is R… …<CHEM>… or …<CHEM>… wherein R is alkyl or haloalkyl of up to 6 carbon atoms; cycloalkyl of from 3 to 8 carbon atoms; alkenyl or alkynyl of up to 5 carbon atoms; -R<4>-O-R<5> or -R<4>-S-R<5> wherein R<4> is alkylene of up to 6 carbon atoms and R<5> is alkyl of up to 6 carbon atoms; or …<CHEM>… or …<CHEM>… wherein Z is nitro, halogen, trifluromethyl or R<4>, and n is 0,1, 2, or 3; R<1> is hydroxy, halogen or …… -O-@-R<6> wherein R<6> is alkyl or haloalkyl of up to 9 carbon atoms; cycloalkyl of from 3 to 8 carbon atoms; alkenyl or alkynyl of up to 5 carbon atoms, or …<CHEM>… wherein Z<1> is nitro, halogen, trifluromethyl, alkyl or alkoxy of up to 8 carbon atoms; and n is 0, 1, 2, or 3; R<2> is hydrogen, hydroxy, alkyl of up to 4 carbon atoms, or allyl; and R<3> is alkyl of up to 3 carbon atoms or allyl. …<??>The invention also includes methods for their production, herbicidal compositions containing same and the use of the said compounds in the control of weeds. |
