| abstract |
Triazine herbicides of the general formula I <IMAGE> (I) wherein R1 and R2 each independently represent a hydrogen or halogen atom, or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkenyloxy, alkynyloxy, aryloxy, alkylthio, alkenylthio, alkynylthio, arylthio or amino group, or a formyl, optionally substituted alkylcarbonyl, cyano, carboxy, optionally substituted alkoxycarbonyl, dialkylaminoxy, dialkyliminoxy or azido group; X represents an oxygen or sulphur atom or a group -SO2-, -SO-, or -NR4-where R4 represents a hydrogen atom or an optionally substituted alkyl group; n is an integer from 1 to 4; Y represents a hydrogen atom or the or each Y each independently represents a halogen atom, a hydroxy group or an optionally substituted alkyl, alkenyl, alkynyl, aryl alkoxy, alkenyloxy, alkynyloxy, aryloxy, heterocyclyloxy, alkylthio, alkenylthio, alkynylthio, arylthio or amino group, or a formyl, optionally substituted alkylcarbonyl, cyano or nitro group, or, when n is at least 2, two groups Y may be linked to form a fused saturated or unsaturated carbocyclic or heterocyclic ring; and Z represents a hydroxyalkyl, hydroxybenzyl, or mono-, di-or trialkoxyalkyl group, a group -CH=NOH, or an optionally esterified carboxyalkyl group, or a group COR3 where R3 represents a hydrogen or halogen atom, or a hydroxy group, or an optionally substituted alkyl, aryl, alkenyl, alkynyl, alkoxy, alkenyloxy, alkynyloxy, cycloalkyloxy, aryloxy, dialkylaminoxy, dialkyliminoxy, amino, alkylthio, arylthio, alkenylthio or alkynylthio group, or R3 represents a group -OR5 where R5 represents an optionally substituted heterocyclic ring; or a carboxylic acid salt of a compound of general formula I with an equivalent amount of an inorganic or organic cation, together with at least one carrier. |