Claims
- 1. A 1-aryl-4-cyano-5-halogenopyrazole of the formula ##STR104## in which R is hydrogen or alkyl having 1 to 4 carbon atoms,
- Ar is phenyl which is substituted at least once by halogen and at least once by halogenoalkyl which has up to 4 carbon atoms and up to 9 halogen atoms, and
- Hal is fluorine, chlorine, bromine or iodine.
- 2. A compound according to claim 1, in which
- R is hydrogen, methyl or ethyl,
- Hal represents fluorine, chlorine, bromine or iodine, and
- Ar is phenyl which is substituted at least once by fluorine, chlorine, bromine or iodine, and at least once by trifluoromethyl, trichloromethyl, dichlorofluoromethyl, difluorochloromethyl, chloromethyl, dichloromethyl, difluoromethyl, pentafluoroethyl, tetrafluoroethyl, trifluorochloroethyl, trifluoroethyl, difluorodichloroethyl, trifluorodichloroethyl or pentachloroethyl.
- 3. A compound according to claim 1, wherein such compound is 5-bromo-4-cyano-1-(2-chloro-4-trifluoromethylphenyl)-pyrazole of the formula ##STR105##
- 4. A compound according to claim 1, wherein such compound is 4-cyano-5-chloro-1-(2,6-dichloro-4-trifluoromethylphenyl)-pyrazole of the formula ##STR106##
- 5. A herbicidal composition comprising a herbicidally effective amount of a compound according to claim 1 in admixture with a diluent.
- 6. A method of combating unwanted vegetation which comprises applying to such vegetation or to a locus from which it is desired to exclude such vegetation a herbicidally effective amount of a compound according to claim 1.
- 7. The method according to claim 6, wherein such compound is
- 5-bromo-4-cyano-1-(2-chloro-4-trifluoromethylphenyl)-pyrazole, or
- 4-cyano-5-chloro-1-(2,6-dichloro-4-trifluoromethyl-phenyl)-pyrazole.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3520329 |
Jun 1985 |
DEX |
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Parent Case Info
This is a continuation-in-part of Application Ser. No. 866,050, filed May 22, 1986, now U.S. Pat. No. 4,747,867.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
4496390 |
Hatton et al. |
Jan 1985 |
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4563210 |
Beck et al. |
Jan 1986 |
|
4620865 |
Beck et al. |
Nov 1986 |
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Non-Patent Literature Citations (2)
Entry |
Chemical Abstracts, vol. 80, No. 13, 4/1/74, p. 341, Abstract 70749b. |
Chemical Abstracts, vol. 99, No. 9, 8/29/83, Abstract 70618a. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
866050 |
May 1986 |
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