3-(SUBSTITUTED 3-OR 5-ISOXAZOLYL)-1-4,OR 5-SUBSTITUTED-2-IMIDAZOLIDINONES,METHODS FOR THEIR PREPARATION,COMPOSITIONS CONTAINING THEM AND THEIR USE AS HERBICIDES

摘要

The invention relates to new herbicidal compounds having the formula:- …… wherein:… A is R… …… or …… 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 …… or …… 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 …… 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.