Claims
- 1. A compound of formula I R1 is hydrogen, fluorine, chlorine, bromine or methyl; R2 is C1-C4alkyl, C1-C4halogenalkyl or halogen; R3 is cyano or R4C(O)—; R4 is hydrogen, fluorine, chlorine, C1-C8alkyl, C2-C8alkenyl, C2-C8alkinyl, C3-C6cycloalkyl, C1-C8halogenalkyl, cyano-C1-C4alkyl, C2-C8halogenalkenyl, C1-C4alkoxy-C1-C4alkyl, C3-C6alkenyloxy-C1-C4alkyl, C1-C4alkylthio-C1-C4alkyl, phenyl, phenyl substituted once to three times by halogen, C1-C4alkyl or C1-C4halogenalkyl, benzyl or benzyl substituted once to three times on the phenyl ring by halogen, C1-C4alkyl or C1-C4halogenalkyl; or R3 is R5X1C(O)—; X1 is oxygen, sulfur, R5 is hydrogen, C1-C8alkyl, C3-C8alkenyl, C3-C8alkinyl, C3-C6cycloalkyl, C3-C6cycloalkyl-C1-C6alkyl, C1-C8halogenalkyl, C3-C8halogenalkenyl, cyano-C1-C4alkyl, C1-C4alkoxy-C1-C4alkyl, C3-C6alkenyloxy-C1-C4alkyl, (oxiranyl)-CH2—, oxetanyl-, C1-C4alkylthio-C1-C4alkyl, phenyl, phenyl substituted once to three times by halogen, C1-C4alkyl or C1-C4halogenalkyl, benzyl or benzyl substituted once to three times on the phenyl ring by halogen, C1-C4alkyl or C1-C4-halogenalkyl, phenyl-C2-C6alkyl, C1-C6alkyl-CO—C1-C4alkyl, R8X2C(O)—C1-C6-alkyl, or R8X2C(O)—C3-C6cycloalkyl; X2 is oxygen, sulfur, R8 is hydrogen, C1-C8alkyl, C3-C8alkenyl, C3-C8alkinyl, C3-C6cycloalkyl, C1-C8halogenalkyl, C3-C8halogenalkenyl, cyano-C1-C4alkyl, C1-C4alkoxy-C1-C4alkyl, C3-C6alkenyloxy-C1-C4alkyl, (oxiranyl)-CH2—, oxetanyl, C1-C4alkylthio-C1-C4alkyl, phenyl, phenyl substituted once to three times by halogen, C1-C4alkyl or C1-C4halogenalkyl, benzyl, benzyl substituted once to three times on the phenyl ring by halogen, C1-C4alkyl or C1-C4halogenalkyl, or phenyl-C2-C6alkyl; R6, R7, R9 and R10 are independently of one another hydrogen, C1-C8alkyl, C3-C8alkenyl, C3-C8alkinyl, C1-C8halogenalkyl or benzyl; or R3 is B1—C1-C8alkyl, B1—C2-C8alkenyl, B1—C2-C8alkinyl, B1—C1-C8halogenalkyl, B1—C2-C8halogenalkenyl, B1—C1-C4alkoxy-C1-C4alkyl, B1—C1-C4alkylthio-C1-C4alkyl or B1—C3-C6cycloalkyl; B1 is hydrogen, cyano, hydroxy, C1-C8alkoxy, C3-C8alkenyloxy, R11X3C(O)—, C1-C4alkylcarbonyl or C1-C4halogenalkylcarbonyl; X3 has the same meaning as X2; R11 has the same meaning as R8; or R3 is B2—C(R12)═CH—; B2 is nitro, cyano or R13X4C(O)—; R12 is cyano or R14X5C(O)—; X4 and X5 have the same meaning as X2; and R13 and R14 have the same meaning as R8; R15 is C1-C3alkyl, C1-C3halogenalkyl or amino; R16 is C1-C3halogenalkyl, C1-C3alkyl-S(O)n1, C1-C3halogenalkyl-S(O)n1 or cyano; or R16 and R15 together form a C3— or C4alkylene or C3— or C4alkenylene bridge which may be substituted by halogen, C1-C3halogenalkyl or cyano; n1 is 0, 1 or 2; R17 is hydrogen, C1-C3alkyl, halogen, C1-C3halogenalkyl or cyano; or R17 and R16 together form a C3— or C4alkylene or C3— or C4alkenylene bridge which may be substituted by halogen, C1-C3halogenalkyl or cyano; R18 is hydrogen, C1-C3alkyl, halogen or cyano; R19 is C1-C3halogenalkyl; or R19 and R18 together form a C3— or C4alkylene or C3— or C4alkenylene bridge which may be substituted by halogen, C1-C3halogenalkyl or cyano; R20 is hydrogen or C1-C3alkyl or halogen; or R20 and R19 together form a C3— or C4alkylene or C3— or C4alkenylene bridge which may be substituted by halogen, C1-C3halogenalkyl or cyano; and X6, X7, and X8 are independently of one another oxygen or sulfur, and the agrochemically acceptable salts and stereoisomers of these compounds of formula I.
- 2. A compound of formula I of claim 1, wherein R2 is methyl or halogen.
- 3. A method for the preparation of compounds of formula I, wherein R1, R2, R3, A and W are as defined in claim 1, comprising treating a compound of formula II wherein R1, R2 and W have the meanings indicated, and L4 is a leaving group, either a) in a suitable solvent, where appropriate in the presence of a base, a catalyst and a compound of formula V R5—OH (V), wherein R5 is hydrogen or C1-C4alkyl, under positive pressure with carbon monoxide, or b) in a suitable solvent in the presence of a tertiary amine, a catalyst, and an olefin by means of the Heck reaction, or under said conditions by means of reaction with a Grignard reagent of formula Va R3—Mg-halogenide (Va), wherein R3 is B1—C1-C8alkyl, B1—C2-C8alkenyl, B1—C2-C8alkinyl, B1—C1-C8halogenalkyl, B1—C2-C8halogenalkenyl, B1—C1-C4alkoxy-C1-C4alkyl, B1—C1C4alkylthio-C1-C4alkyl or B1—C3-C6cycloalkyl and B1 has the meaning defined in claim I, or in an inert solvent and in the presence of a catalyst with a tin compound of formula Vb (R3)4Sn (Vb), wherein R3 has the meaning indicated, or c) where applicable in an inert solvent at reaction temperatures of 20-300° C. subjecting said compound to a cyanidation reaction, or d) first oxidizing said compound in a suitable solvent to form a compound of formula IV and treating this in an inert solvent with dimethylcarbamoyl chloride and a cyanidation reagent, and then where applicable further functionalizing the compound according to the definitions of A and R3.
- 4. A herbicidal and plant growth inhibiting composition, which comprises a herbicidally effective amount of the compound of formula I on an inert carrier.
- 5. A herbicidal and plant growth inhibiting composition of claim 4 comprising as an additional component a further co-herbicide.
- 6. A method of controlling undesirable plant growth, which comprises treating the plants or the locus thereof with a herbicidally effective amount of a compound of formula I of claim 1 or of a composition containing such a compound.
Priority Claims (1)
Number |
Date |
Country |
Kind |
0959/98 |
Apr 1998 |
CH |
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Parent Case Info
This is a continuation of International Application No. PCT/EP99/02815, filed Apr. 26, 1999, the contents of which are incorporated herein by reference.
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Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/EP99/02815 |
Apr 1999 |
US |
Child |
09/702101 |
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US |