Novel herbicides

A compound of formula (H)

• wherein
• R1 is halogen, C1-C4alkyl, C1-C4haloalkyl, C3-C6cycloalkyl, C2-C4alkenyl, C2-C4haloalkenyl, C2-C4alkynyl, C1-C4alkoxy, C1-C4haloalkoxy, C1-C4alkylthio, C1-C4alkylsulfinyl, C1-C4alkylsulfonyl, nitro or cyano;
• r is 0, 1, 2 or 3;
• R3, if r is 1, is halogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6alkoxy, C1-C6haloalkoxy, C2-C6alkenyl, C2-C6alkynyl, C1-C6alkylthio, C1-C6alkylsulfinyl, C1-C6alkylsulfonyl, cyano or nitro;
• or the substituents R3, if r is 2 or 3, independently of each other, are halogen, C1-C6alkyl, C1-C6haloalkyl, C1-C6alkoxy, C1-C6haloalkoxy, C2-C6alkenyl, C2-C6alkynyl, C1-C6alkylthio, C1-C6alkylsulfinyl, C1-C6alkylsulfonyl, cyano or nitro;
• R4, R5, R6 and R7, independently of each other, are hydrogen, C1-C4alkyl, C1-C4haloalkyl, C1-C4alkoxyC1-C4alkyl, C1-C4alkylthioC1-C4alkyl, C1-C4alkylsulfinylC1-C4alkyl, C1-C4alkylsulfonylC1-C4alkyl;
• cyclopropyl or cyclopropyl substituted by C1- or C2alkyl, C1- or C2haloalkyl or halogen;
• cyclobutyl or cyclobutyl substituted by C1- or C2alkyl;
• oxetanyl or oxetanyl substituted by C1- or C2alkyl;
• C5-C7cycloalkyl or C5-C7cycloalkyl substituted by C1- or C2alkyl or C1- or C2haloalkyl, where a methylene group of the cycloalkyl moiety is optionally replaced by an oxygen or sulfur atom or a sulfinyl or sulfonyl group;
• C4-C7cycloalkenyl or C4-C7cycloalkenyl substituted by C1- or C2alkyl or C1- or C2haloalkyl, where a methylene group of the cycloalkenyl moiety is optionally replaced by an oxygen or sulfur atom or a sulfinyl or sulfonyl group;
• cyclopropylC1-C5alkyl or cyclopropylC1-C5alkyl substituted by C1- or C2alkyl, C1- or C2haloalkyl or halogen;
• cyclobutylC1-C5alkyl or cyclobutylC1-C5alkyl substituted by C1-C2alkyl;
• oxetanylC1-C5alkyl or oxetanylC1-C5alkyl substituted by C1- or C2alkyl;
• C5-C7cycloalkylC1-C5alkyl or C5-C7cycloalkylC1-C5alkyl substituted by C1- or C2alkyl or C1- or C2haloalkyl, where a methylene group of the cycloalkyl moiety is optionally replaced by an oxygen or sulfur atom or a sulfinyl or sulfonyl group;
• C4-C7cycloalkenylC1-C5alkyl or C4-C7cycloalkenylC1-C5alkyl which is substituted by C1- or C2alkyl or C1- or C2haloalkyl, where a methylene group of the cycloalkenyl moiety is optionally replaced by an oxygen or sulfur atom or a sulfinyl or sulfonyl group;
• phenyl or phenyl substituted by C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkyl, halogen, nitro, cyano, C1-C4alkylthio, C1-C4alkylsulfinyl, C1-C4alkylsulfonyl or C1-C4alkylcarbonyl;
• benzyl or benzyl substituted by C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkyl, halogen, nitro, cyano, C1-C4alkylthio, C1-C4alkylsulfinyl, C1-C4alkylsulfonyl or C1-C4alkylcarbonyl;
• or heteroaryl or heteroaryl substituted by C1-C4alkyl, C1-C4alkoxy, C1-C4haloalkyl, halogen, nitro, cyano, C1-C4alkylthio, C1-C4alkylsulfinyl, C1-C4alkylsulfonyl or C1-C4alkylcarbonyl;
• or
• R4 and R5, or R6 and R7, are joined to form a 5-7 membered saturated or unsaturated ring in which a methylene group is optionally replaced by an oxygen or sulfur atom, or a 5-7 membered saturated or unsaturated ring substituted by C1- or C2alkyl, where a methylene group of the ring is optionally replaced by an oxygen or sulfur atom;
• or
• R4 and R7 are joined to form a 5-7 membered saturated or unsaturated ring unsubstituted or substituted by C1- or C2alkyl, or C1- or C2alkoxy;
• and
• Y is O, C═O, S(O)m or S(O)nNR8;
• provided that when Y is C═O, R6 and R7 are different from hydrogen when either R4 or R5 is hydrogen, and R4 and R5 are different from hydrogen when either R6 or R7 is hydrogen;
• m is 0 or 1 or 2 and n is 0 or 1;
• R8 is hydrogen, C1-C6alkyl, C3-C6cycloalkyl, C1-C6alkoxycarbonyl, tri(C1-C6alkyl)silyl-ethyloxycarbonyl, C1-C6haloalkoxycarbonyl, cyano, C1-C6haloalkyl, C1-C6hydroxyalkyl, C2-C6alkenyl, C2-C6alkynyl, C2-C6haloalkenyl, C1-C6alkylcarbonyl, C1-C6haloalkylcarbonyl, C1-C6cycloalkylcarbonyl;
• phenylcarbonyl or phenylcarbonyl substituted by R9;
• benzylcarbonyl or benzylcarbonyl substituted by R9;
• pyridylcarbonyl or pyridylcarbonyl substituted by R9;
• phenoxycarbonyl or phenoxycarbonyl substituted by R9;
• or benzyloxycarbonyl or benzyloxycarbonyl substituted by R9;
• R9 is C1-C6haloalkyl, C1-C6alkoxycarbonyl, nitro, cyano, formyl, carboxyl or halogen;
• Hal is chlorine, bromine, iodine or trifluoromethanesulonyloxy;
• and wherein heteroaryl means thienyl, furyl, pyrrolyl, isoxazolyl, oxazolyl, isothiazolyl, thiazolyl, pyrazolyl, imidazolyl, triazolyl, tetrazolyl, pyridyl, pyrimidinyl, pyrazinyl, triazinyl, oxadiazolyl, thiadiazolyl or pyridazinyl.