Claims
- 1. A compound represented by the formula ##STR2## wherein: R.sub.2 and R.sub.6 are independently lower alkyl, fluorinated methyl, chlorofluorinated methyl, or chlorinated methyl, provided that one of R.sub.2 and R.sub.6 is fluorinated methyl or chlorofluorinated methyl;
- R.sub.3 is alkoxy or alkylthio;
- R.sub.4 is hydrogen, alkyl, cycloalkyl, or cycloalkylalkyl; and
- R.sub.5 is a heterocyclic radical selected from isoxazolyl, oxazolyl, and 4,5-(dihydro)oxazolyl which is optionally substituted with one or more radicals selected from halo, amino, aminocarbonyl, cyano, alkoxy, alkyl, alkoxyalkyl, alkoxycarbonyl, alkylamino, and dialkylamino.
- 2. The compound of claim 1 wherein R.sub.4 is 2-methylpropyl.
- 3. The compound of claim 2 wherein one of R.sub.2 and R.sub.6 is trifluoromethyl and the other is difluoromethyl.
- 4. The compound of claim 3 wherein R.sub.3 is methoxy.
- 5. The compound of claim 1 wherein R.sub.5 is oxazolyl.
- 6. The compound of claim 1 wherein R.sub.5 is isoxazolyl.
- 7. A method of controlling undesirable vegetation comprising applying thereto an effective amount of a compound represented by the formula ##STR3## wherein: R.sub.2 and R.sub.6 are independently lower alkyl, fluorinated methyl, chlorofluorinated methyl, or chlorinated methyl, provided that one of R.sub.2 and R.sub.6 is fluorinated methyl or chlorofluorinated methyl;
- R.sub.3 is alkoxy or alkylthio;
- R.sub.4 is hydrogen, alkyl, cycloalkyl, or cycloalkylalkyl; and R.sub.5 is a heterocyclic radical selected from isoxazolyl, oxazolyl, and 4,5-(dihydro)oxazolyl which is optionally substituted with one or more radicals selected from halo, amino, aminocarbonyl, cyano, alkoxy, alkyl, alkoxyalkyl, alkoxycarbonyl, alkylamino, and dialkylamino.
- 8. The method of claim 7 wherein R.sub.4 is 2-methylpropyl.
- 9. The method of claim 8 wherein one of R.sub.2 and R.sub.6 is trifluoromethyl and the other is difluoromethyl.
- 10. The method of claim 9 wherein R.sub.3 is methoxy.
- 11. The method of claim 7 wherein R.sub.5 is oxazolyl.
- 12. The method of claim 7 wherein R.sub.5 is isoxazolyl.
- 13. A herbicidal composition comprising having as an active ingredient a herbicidal compound represented by the formula ##STR4## wherein: R.sub.2 and R.sub.6 are independently lower alkyl, fluorinated methyl, chlorofluorinated methyl, or chlorinated methyl, provided that one of R.sub.2 and R.sub.6 is fluorinated methyl or chlorofluorinated methyl;
- R.sub.3 is alkoxy or alkythio;
- R.sub.4 is hydrogen, alkyl, cycloalkyl, or cycloalkylalkyl; and
- R.sub.5 is a heterocyclic radical selected from isoxazolyl, oxazolyl, and 4,5-(dihydro)oxazolyl which is optionally substituted with one or more radicals selected from halo, amino, aminocarbonyl, cyano, alkoxy, alkyl, alkoxyalkyl, alkoxycarbonyl, alkylamino, and dialkylamino.
- 14. The composition of claim 13 wherein R.sub.4 is 2-methylpropyl.
- 15. The composition of claim 13 wherein one of R.sub.2 and R.sub.6 is trifluoromethyl and the other is difluoromethyl.
- 16. The composition of claim 13 wherein R.sub.3 methoxy.
- 17. The composition of claim 13 wherein R.sub.5 is oxazolyl.
- 18. The composition of claim 13 wherein R.sub.5 is isoxazolyl.
- 19. The compound of claim 1 wherein R.sub.5 is 4,5-(dihydro)oxazolyl.
- 20. The method of claim 7 wherein R.sub.5 is 4,5-(dihydro)oxazolyl.
- 21. The composition of claim 13 wherein R.sub.5 is 4,5-(dihydro)oxazolyl.
- 22. The compound of claim 1 which is 2-(difluoromethyl)-5-[(4,5-dihydro-2-oxazolyl)carbonyl]-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 23. The method of claim 7 wherein the compound is 2-(difluoromethyl)-5-[(4,5-dihydro-2-oxazolyl)carbonyl]-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 24. The composition of claim 13 wherein the compound is 2-(difluoromethyl)-5-[(4,5-dihydro-2-oxazolyl)carbonyl]-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarbonylic acid.
- 25. The compound of claim 1 which is 2-(difluoromethyl)-4-(2-methylpropyl)-5-(2-oxazolylcarbonyl)-6-(trifluoromethyl-3-pyridinecarboxylic acid.
- 26. The method of claim 7 wherein the compound is 2-(difluoromethyl)-4-(2-methylpropyl)-5-(2-oxazolylcarbonyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 27. The composition of claim 13 wherein the compound is 2-(difluoromethyl)-4-(2-methylpropyl)-5-(2-oxazolylcarbonyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 28. The compound of claim 1 which is 2-(difluoromethyl)-5-[(3,5-dimethyl-4-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 29. The method of claim 7 wherein the compound is 2-(difluoromethyl)-5-(3,5-dimethyl-4-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 30. The composition of claim 13 wherein the compound is 2-(difluoromethyl)-5-(3,5-dimethyl-4-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl-3-pyridinecarboxylic acid.
- 31. The compound of claim 1 which is 2-(difluoromethyl)-5-(3-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 32. The method of claim 7 wherein the compound is 2-(difluoromethyl)-5-(3-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
- 33. The composition of claim 13 wherein the compound is 2-(difluoromethyl)-5-(3-isoxazolylcarbonyl)-4-(2-methylpropyl)-6-(trifluoromethyl)-3-pyridinecarboxylic acid.
Parent Case Info
This is a division of application Ser. No. 07/802,924, filed Dec. 6, 1991 now U.S. Pat. No. 5,200,262.
Non-Patent Literature Citations (3)
Entry |
Chemical Abstracts, vol. 111, No. 9, Abstract 77,993u, p. 734, Aug. 28, 1989. |
Chemical Abstracts, vol. 113, No. 7, Abstract 58,947g, Aug. 13, 1990. |
J. of Heterocyclic Chemistry, vol. 27, No. 6, pp. 1697-1704, Sep.-Oct. 1990. |
Divisions (1)
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Number |
Date |
Country |
Parent |
802924 |
Dec 1991 |
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