Claims
- 1. A pyrazoline of the formula ##STR31## wherein R.sup.1 and R.sup.2 represent hydrogen, C.sub.1-4 alkyl, or unsubstituted or halogen-substituted phenyl,
- A represents phenyl which may be substituted by at least one substituent selected from the group consisting of halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, halogeno-C.sub.1-4 alkyl, halogeno-C.sub.1-4 alkoxy, nitro, haloalkylenedioxy, unsubstituted or halogen-substituted phenyl, and unsubstituted or halogen-substituted phenoxy, or
- A represents halogen-substituted 3-pyridyl,
- X and Y individually represent hydrogen, halogen, C.sub.1-4 alkyl, halogeno-C.sub.1-4 alkyl, halogeno-C.sub.1-4 alkoxy or halogeno-C.sub.1-4 alkylthio, or
- X and Y together form a haloalkylenedioxy group,
- with the proviso (a) that X and Y do not simultaneously represent hydrogen, and with the further proviso (b) that, when R.sup.1 and R.sup.2 simultaneously represent hydrogen, then (i) A represents phenyl substituted by at least one substituent selected from the group consisting of halogeno-C.sub.1-4 alkoxy, nitro, halomethylenedioxy, unsubstituted or halogen-substituted phenyl and unsubstituted or halogen-substituted phenoxy, or (ii) at least one of X and Y represents halogeno-C.sub.1-4 alkoxy or halogeno-C.sub.1-4 alkylthio, or (iii) X and Y together form a haloalkylenedioxy group.
- 2. A compound according to claim 1, wherein
- R.sup.1 and R.sup.2 represent hydrogen, methyl, ethyl, isopropyl, tert-butyl or unsubstituted or chlorine-substituted phenyl,
- A represents phenyl which may be substituted by at least one member selected from the group consisting of fluorine, chlorine, bromine, C.sub.1-4 alkyl, C.sub.1-2 alkoxy, fluoro- and/or chloro-C.sub.1-2 alkyl, fluoro- and/or chloro-C.sub.1-2 alkoxy, nitro, difluoromethylenedioxy, unsubstituted or fluoro- and/or chloro-substituted phenyl, and unsubstituted or chloro- and/or bromo-substituted phenoxy, or
- A represents fluoro, chloro- or bromo-substituted 3-pyridyl,
- X and Y represent hydrogen, chlorine, fluoro- and/or chloro-C.sub.1-2 alkyl, fluoro- and/or chloro-C.sub.1-2 alkoxy, or fluoro-and/or chloro-C.sub.1-2 alkylthio, or
- X and Y together form a difluoromethylenedioxy or a tetrafluoroethylenedioxy group,
- with the proviso (a) that X and Y do not simultaneously represent hydrogen, and with the (b) further proviso that, when R.sup.1 and R.sup.2 simultaneously represent hydrogen atom, then (i) A represents phenyl substituted by at least one substituent selected from the class consisting of fluoro- and/or chloro-C.sub.1-2 alkoxy, nitro, difluoromethylenedioxy, unsubstituted or fluoro- and/or chloro-substituted phenyl and unsubstituted or chloro- and/or bromo-substituted phenoxy, or (ii) one of X and Y represents fluoro-and/or chloro-C.sub.1-2 alkoxy or fluoro and/or chloro-C.sub.1-2 alkoxy or fluoro- and/or chloro-C.sub.1-2 alkylthio, or (iii) X and Y together form difluoromethylenedioxy or tetrafluoroethylenedioxy.
- 3. A compound according to claim 1 wherein
- R.sup.1 and R.sup.2 represent hydrogen, methyl, ethyl, isopropyl, tert-butyl, phenyl, 4-chlorophenyl,
- A represents phenyl which may be substituted by at least one group selected from the class consisting of fluorine, chlorine, methyl, tert-butyl, methoxy, trifluormethyl, difluoromethoxy, trifluoromethoxy, nitro, difluoromethylenedioxy, unsubstituted or chloro-substituted phenyl, and unsubstituted or chloro- and/or bromo-substituted phenoxy, or
- A represents chlorine- or bromine-substituted 3-pyridyl,
- X represents hydrogen or chlorine and
- Y represents chlorine, difluoromethyl, trifluoromethyl, trifluoromethoxy or trifluoromethythio, or
- X and Y together form a difluoromethylenedioxy group or a tetrafluoroethylenedioxy group, and
- with the proviso (b) that, when R.sup.1 and R.sup.2 simultaneously represent a hydrogen atom, then (i) A represents phenyl, which may be substituted by at least one group selected from the group consisting of difluoromethoxy, trifluoromethoxy, nitro, difluoromethylenedioxy, unsubstituted or chloro-substituted phenyl and unsubstituted or chloro- and/or bromo-substituted phenoxy, or (ii) Y represents trifluoromethoxy or trifluoromethythio, or (iii) X and Y together form a difluoromethylenedioxy group or a tetrafluoroethylenedioxy group.
- 4. A compound according to claim 1, wherein such compound is 1-(4-trifluoromethyoxyphenyl) carbamoyl-3-phenyl-5-(6-chloro-3-pyridyl)-2-pyrazoline of the formula ##STR32##
- 5. A compound according to claim 1, wherein such compound is 1-(4-trifluoromethylphenyl) carbamoyl-3-(4 chlorophenyl)-4-methyl-5-(6-chloro-3-pyridyl)-2-pyrazoline of the formula ##STR33##
- 6. An insecticidal composition comprising an insecticidally effective amount of a compound according to claim 1 and a diluent.
- 7. A method of combating insects which comprises applying to such insects or to a locus from which it is desired to exclude such insects, an insecticidally effective amount of a compound according to claim 1.
- 8. The method according to claim 7, wherein such compound is 1-(4-trifluoromethoxyphenyl) carbamoyl-3-phenyl-5-(6-chloro-3-pyridyl)-2-pyrazoline or 1-(4-trifluoromethylphenyl) carbamoyl-3-(4-chlorophenyl)-4-methyl-5-(6-chloro-3-pyridyl)-2-pyrazoline.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3-297773 |
Oct 1991 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 07/957,324, filed Oct. 6, 1992, now abandoned.
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WOX |
Continuations (1)
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Number |
Date |
Country |
Parent |
957324 |
Oct 1992 |
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