Claims
- 1. A 2-benzoylcylic-1,3-dione derivative of the general formula:
- wherein X is selected from the group consisting of the methylene group, an oxygen atom, a sulphur atom and a group --NR.sup.4 --, Y represents a methylene group --C(R.sup.5) (R.sup.6)-- or the oxygen atom, R.sup.1 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which unsubstituted or substituted by one or more halogen atoms or represents a cycloalkyl group of from 3 to 6 carbon atoms, R.sup.2 represents the hydrogen atom or a group R.sup.7 or R.sup.1 and R.sup.2 together represent an alkylene group of from 2 to 6 carbon atoms, R.sup.3 represents a halogen atom, a hydroxy, carboxy, nitro or cyano group, an amino or carbamoyl group which is unsubstituted or substituted by one or two straight- or branched-chain alkyl groups of from 1 to 6 carbon atoms, a straight- or branched-chain alkoxycarbonyl or alkanoyl or alkanoylamino group of from 2 to 7 carbon atoms or a group R, RO, RS, RSO or RSO.sub.2 in which R represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms, R.sup.4 represents the hydrogen atom or a straight- or branched-chain alkyl or alkoxycarbonyl group of from 1 to 6 or from 2 to 7 carbon atoms respectively, R.sup.5 represents the hydrogen atom or a straight- or branched-chain alkyl or alkoxycarbonyl group of from 1 to 6 or 2 to 7 carbon atoms respectively, R.sup.6 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms, R.sup.7 represents a straight- or branched-chain alkyl group of 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms or a straight- or branched-chain alkylthio group of from 1 to 6 carbon atoms or by a group (R.sup.8).sub.n -phenyl-S-, or represents a cycloalkyl group of from 3 to 6 carbon atoms, or the tetrahydrothiapyran-3-yl group or represents a group (R.sup.8).sub.n -phenyl- in which R.sup.8 represents a halogen atom, a hydroxy, carboxy, nitro or cyano group, an amino or carbamoyl group which is unsubstituted or substituted by one or two straight- or branched-chain alkyl groups of from 1 to 6 carbon atoms, a straight- or branched-chain alkoxycarbonyl or alkanoyl or alkanoylamino group of from 2 to 7 carbon atoms or a group R, RO, RS, RSO or RSO.sub.2 in which R represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms, m is zero or an integer from 1 to 5 and n is zero or an integer from 1 to 5, with the proviso that (i) when X represents the methylene group, and Y represents a methylene group --C(R.sup.5)(R.sup.6)-- then R.sup.1 and R.sup.2 do not simultaneously represent a hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms, and (ii) if R.sup.1 and R.sup.2 are hydrogen or C.sub.1 -C.sub.4 alkyl, Y is --C(R.sup.5)(R.sup.6)-- wherein R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 alkyl and X is --NR.sup.4 wherein R.sup.4 is C.sub.1 -C.sub.4 alkyl, then m equals 0, 4 or 5, or if m equals 1, 2 or 3 then R.sup.3 is hydroxy, carboxy, carbamoyl, or alkoxycarbonyl; or an agriculturally acceptable salt thereof.
- 2. A compound according to claim 1 wherein R.sup.1 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms, R.sup.2 represents the hydrogen atom or a group R.sup.7, R.sup.3 is as defined in claim 1 but does not represent a carbamoyl group, R.sup.7 represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is unsubstituted or substituted by a straight- or branched-chain alkylthio group of from 1 to 6 carbon atoms or by a group (R.sup.8).sub.n -phenyl-S- or represents the cyclohexyl group or the tetrahydrothiapyran-3-yl group or represents a group (R.sup.8).sub.n -phenyl- in which R.sup.8 is as defined in claim 1 but does not represents a carbamoyl group, and the other symbols are as defined in claim 1.
- 3. A compound according to claim 1 wherein Y represents a methylene group --CR.sup.5 R.sup.6 --, X represents a group --NR.sup.4 --, R.sup.1 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms, R.sup.2 represents the hydrogen atom or a group R.sup.7, R.sup.3 is as defined in claim 1 but does not represent a carbamoyl group, R.sup.7 represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms or represents a group (R.sup.8).sub.n -phenyl- in which R.sup.8 is as defined in claim 1 but does not represent a carbamoyl group, and the other symbols are as defined in claim 1.
- 4. A compound according to claim 1 wherein Y represents a methylene group --C(R.sup.5)(R.sup.6)-- wherein R.sup.5 and R.sup.6 are as defined in claim 1.
- 5. A compound according to claim 1 wherein X represent a group --NR.sup.4 --, Y represents a methylene group --C(R.sup.5)(R.sup.6)--, R.sup.2 represents an alkyl or an unsubstituted or substituted phenyl group as defined in claim 1 for R.sup.7 and the other symbols are as defined in claim 1.
- 6. A compound according to claim 1 wherein R.sup.2 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms or a cycloalkyl group of from 3 to 6 carbon atoms, or represents a group (R.sup.8).sub.n -phenyl-, or R.sup.1 and R.sup.2 together represent an alkylene group of from 2 to 6 carbon atoms.
- 7. A compound according to claim 1 wherein R.sup.1 represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is substituted by one or more halogen atoms or a cycloalkyl group of from 3 to 6 carbon atoms and R.sup.2 represents a group (R.sup.8).sub.n -phenyl-.
- 8. A compound according to claim 1 wherein X is selected from the group consisting of the methylene group, an oxygen atom, a sulphur atom and a group --NR.sup.4' --, in which R.sup.4' represents the hydrogen atom or a staight- or branched-chain alkyl group of from 1 to 6 carbon atoms, Y represents a methylene group --C(R.sup.5)(R.sup.6)--, R.sup.1 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is unsubstituted or substituted by one or more halogen atoms or a cycloalkyl group of from 3 to 6 carbon atoms, R.sup.2 represents a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms which is substituted by one or more halogen atoms or a cycloalkyl group of from 3 to 6 carbon atoms or R.sup.1 and R.sup.2 together represent an alkylene group of from 2 to 6 carbon atoms.
- 9. A compound according to claim 1 wherein X represents the group --NH--, Y represents a methylene group --C(R.sup.5)(R.sup.6)--, R.sup.1 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms, R.sup.2 represents the hydrogen atom or a straight- or branched-chain alkyl group of from 1 to 6 carbon atoms.
- 10. A compound according to claim 1 wherein (R.sup.3).sub.m substitution is 2-chloro, 2-trifluoromethyl or 2-nitro, with 4-trifluoromethoxy, 4-trifluoromethylthio, 4-trifluoromethylsulphinyl, 4-trifluoromethyl-sulphonyl, 4-chloro, 4-trifluoromethyl or 4-methylsulphonyl.
- 11. A compound according to claim 10 wherein (R.sup.3).sub.m substitution comprises 2-nitro substitution.
- 12. A compound according to claim 10 which lacks a substituent in the 6-position of the benzoyl group.
- 13. A compound according to claim 1 wherein the compound is one of compound nos. 1-10, 14, 20, 23-27, 34, 45-48, 53-76, 81-83, 94-100, 102-107, 109-111 and 113-121.
- 14. A herbicidal composition which comprises, as active ingredient, a 2-benzoylcyclic-1,3-dione according to claim 1 or an agriculturally acceptable salt thereof in association with an agriculturally acceptable diluent or carrier and/or surface active agent.
- 15. A herbicidal composition according to claim 14 which comprises from 0.05 to 90% by weight of active ingredient.
Priority Claims (2)
Number |
Date |
Country |
Kind |
8703068 |
Feb 1987 |
GBX |
|
8707608 |
Mar 1987 |
GBX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/154,031, filed Feb. 9, 1988 now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
4808720 |
Curtis |
Feb 1989 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
154031 |
Feb 1988 |
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