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Combating pests with 3-(2,3-dichloro-3,3-difluoro-prop-1-en-1-yl)-2,2-dimethyl-cyclo-propanec arboxylic acid fluoro-benzyl esters
| Details |
Inventors: Fuchs, Rainer; Naumann, Klaus; Lantzsch, Reinhard; Hagemann, Hermann; Hammann, Ingeborg; Homeyer, Bernhard; Behrenz, Wolfgang; Stendel, Wilhelm;
Assignee: Bayer Aktiengesellschaft (Leverkusen, DE)
Primary Examiner: Torrence; Dolph H.
Assistant Examiner:
Attorney, Agent or Firm: Sprung, Felfe, Horn, Lynch & Kramer
3-(2,3-Dichloro-3,3-difluoro-prop-1-en-1-yl)-2,2-dimethyl-cyclo-propanecarb oxylic acid fluoro-benzyl esters of the formula ##STR1## in which R.sup.1 represents hydrogen, cyano, alkyl with up to 4 carbon atoms, alkenyl with up to 4 carbon atoms or alkynyl with up to 4 carbon atoms, and R.sup.2 represents a phenyl radical which is substituted by fluorine and/or optionally fluorine-substituted phenoxy, with the proviso that the radical R.sup.2 in total contains at least one fluorine substituent, which possess pesticidal activity. |
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DETAILED DESCRIPTION We claim: 1.
A 3-(2,3-dichloro-3,3-difluoro-prop-1-en-1-yl)-2,2-dimethyl-cyclopropanecarb oxylic acid fluorobenzyl ester of the formula ##STR13## in which R.
sup.
1 represents hydrogen, cyano, alkyl with up to 4 carbon atoms, alkenyl with up to 4 carbon atoms or alkynyl with up to 4 carbon atoms, and R.
sup.
2 represents a phenyl radical which is substituted by fluorine and/or optionally fluorinesubstituted phenoxy, with the proviso that the radical R.
sup.
2 in total contains at least one fluorine substituent.
2.
A compound according to claim 1, in which R.
sup.
1 represents hydrogen or cyano, and R.
sup.
2 represents pentafluorophenyl, 4-fluoro-3-phenoxy-phenyl, 3-(4-fluoro-phenoxy)-phenyl or 4-fluoro-3-(4-fluoro-phenoxy)-phenyl.
3.
A compound according to claim 1, wherein such compound is 2,2-dimethyl-3-(2',3'-dichloro-3',3'-difluoro-1'-propenyl)-cyclopropane-1- carboxylic acid 3-(4'-fluoro-phenoxy)-.
alpha.
-cyanobenzyl ester of the formula ##STR14## 4.
A compound according to claim 1, wherein such compound is 2,2-dimethyl-3-(2',3'-dichloro-3',3'-difluoro-1'-propenyl)-cyclopropane-1- carboxylic acid 4-fluoro-3-phenoxy-.
alpha.
-cyanobenzyl ester of the formula ##STR15## 5.
A compound according to claim 1, wherein such compound is 2,2-dimethyl-3-(2',3'-dichloro-3',3'-difluoro-1'-propenyl)-cyclopropane-1- carboxylic acid 4 fluoro-3-phenoxy-benzyl ester of the formula ##STR16## 6.
A compound according to claim 1, wherein such compound is 2,2-dimethyl-3-(2',3'-dichloro-3',3'-difluoro-1'-propenyl)-cyclopropane-1- carboxylic acid pentafluorobenzyl ester of the formula ##STR17## 7.
A pesticidal composition comprising a pesticidally effective amount of a compound according to claim 1 in admixture with a diluent.
8.
A method of combating pests, comprising applying to the pests, or to a habitat thereof, a pesticidally effective amount of a compound according to claim 1.
9.
The method according to claim 8, in which said compound is 2,2-dimethyl-3-(2',3'-dichloro-3',3'-difluoro-1'-propenyl)-cyclopropane-1-c arboxylic acid 3-(4'-fluoro-phenoxy)-
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