Patent ID: 6028032
Filing Date: 2000-02-22
Classification: A01N,C07D

Abstract:
A 1,3-oxazin-4-one derivative of the formula (I): ##STR11## wherein: R.sup.1 represents phenyl optionally substituted by from one to five groups which may be the same or different selected from halogen, hydroxy, lower alkyl, haloalkyl, alkoxy, haloalkoxy, --S(O).sub.n R.sup.7, --CO.sub.2 R.sup.7, --COR.sup.7, cyano, nitro, --O(CH.sub.2).sub.q --CO.sub.2 R.sup.7 and phenoxy;R.sup.2 represents:a straight- or branched-chain alkyl having from one to ten carbon atoms which is substituted by one or more groups R.sup.8 which may be the same or different;a straight- or branched-chain optionally halogenated alkenyl or alkynyl group having up to ten carbon atoms;or a group selected from cyano, --CHO, --COR.sup.7, --CO.sub.2 H, --CO.sub.2 R.sup.7, --COSR.sup.7, --CONR.sup.9 R.sup.10, --CH.dbd.NOH, --CH.dbd.NOR.sup.7, --CH.dbd.NOCOR.sup.7, --CH.dbd.NNR.sup.9 R.sup.10, --CH.sub.2 CN, --CH.sub.2 NO.sub.2 and oxiranyl;R.sup.3 represents phenyl optionally substituted by from one to five groups which may be the same or different selected from halogen, hydroxy, lower alkyl, haloalkyl, alkoxy, haloalkoxy, --S(O).sub.n R.sup.7, --CO.sub.2 R.sup.7, --COR.sup.7, cyano, nitro, --O(CH.sub.2).sub.q CO.sub.2 R.sup.7 and phenoxy;or R.sup.3 represents a first five to seven membered heteroaromatic ring having from one to four ring heteroatoms which may be the same or different selected from nitrogen, oxygen and sulphur, said first ring being optionally fused to a phenyl ring or to a second five to seven membered heteroaromatic ring having from one to four heteroatoms which may be the same or different selected from nitrogen, oxygen and sulphur, to form a bicyclic ring system in which either ring is optionally substituted by from one to four groups which may be the same or different selected from halogen, hydroxy, lower alkyl, haloalkyl, alkoxy, haloalkoxy, --S(O).sub.n R.sup.7, --CO.sub.2 R.sup.7, --COR.sup.7, cyano, nitro, --O(CH.sub.2).sub.q CO.sub.2 R.sup.7 and phenoxy, said first ring being linked to the nitrogen atom of the group NR.sup.6 via one of the ring carbon atoms;R.sup.4 and R.sup.5 independently represent lower alkyl;W represents --NR.sup.6 --;R.sup.6 represents hydrogen, lower alkyl, haloalkyl, alkenyl, alkynyl, --COR.sup.7 or --CO.sub.2 R.sup.7 ;R.sup.7 represents lower alkyl or haloalkyl;n represents zero, one or two;q represents one or two;R.sup.8 represents a member of the group consisting of halogen, --OH, --OR.sup.7, --OCOR.sup.7, --S(O).sub.n R.sup.7 and --NR.sup.9 R.sup.10 ;R.sup.9 and R.sup.10 independently represent hydrogen, lower alkyl or haloalkyl;or an agriculturally acceptable salt thereof.