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4388323 |
Acaricide compounds
There are described hydroquinone-diethers endowed with a high acaricide activity, the processes for their preparation and their use as acaricides.
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4386103 |
Dichloroamino acid derivatives useful as potent germicidal and fungicidal agents
Dichloroamino acid derivatives other than α-dichloroamino acids are prepared from chlorination of corresponding amino acids, and are found to be potent germicidal and fungicidal agents.
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4385186 |
Optically active 4-hydroxy-3-methyl-2-(2-propynyl)-2-cyclopentenone
The present invention relates to a method for producing an optically active (+)-(s)-4-hydroxy-3-methyl-2-2'-propynyl-2-cyclopentenone which comprises reacting...
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4385070 |
Halogenated esters
Compounds of formula I wherein R 1 and R 2 are each selected from halomethyl and halo and R is nitro, cyano, lower alkoxycarbonyl, lower alkylcarbonyl, or di- or trifluoromethyl, and n has a...
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4380656 |
2-Vinyl- and 2-ethylcyclopropane carboxylates
Novel 2-vinyl- and 2-ethylcyclopropane carboxylates useful as pesticides, herbicides and chemical intermediates are provided. The products of this invention contain two gem carboxylate ##STR1##...
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T102909 |
Intermediates and process for insecticidal biphenylmethyl esters
Compounds of formulae II, III and IV: ##STR1## are useful intermediates for preparation of an insecticidal compound of formula (I) ##STR2## in which R a and R b are independently hydrogen,...
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T102908 |
Catalyzed transesterification synthesis
Esters of the formula ##STR1## wherein X is chlorine or bromine and B is a benzyl group of the formula ##STR2## where Y and Z may be the same or different and are selected from the group consisting...
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T102907 |
Process to 3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate
3-Phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate is prepared in greater than 90% yield by alcoholysis of lower alkyl...
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4378372 |
Cyclopropanecarboxylic acid esters and use thereof in pest control
The invention relates to cyclopropanecarboxylic acid esters of the formula ##STR1## wherein X 1 is methyl or halogen, R 1 is hydrogen, cyano, --CSNH 2 , allenyl, C 2 -C 3 alkenyl or C 2 -C 3 ...
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4376786 |
Combating arthropods with 4-fluoro-3-phenoxy-benzyl 3-alken-1-yl-2,2-dimethyl-cyclopropanecarboxylates
4-Fluoro-3-phenoxy-benzyl 3-alken-1-yl-2,2-dimethylcyclopropanecarboxylates have the general formula ##STR1## wherein R represents alkyl or alkenyl, R 1 represents hydrogen or alkyl, with the...
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4375476 |
Insecticidal (2,6-dimethyl-3-substituted phenyl)methyl cyclopropanecarboxylates
(2,6-Dimethyl-3-substituted phenyl)methyl cyclopropanecarboxylates and insecticidal compositions containing these esters are useful for the control of a broad range of insects and acarids.
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4370497 |
Oxidation process using tellurium oxide catalysts
The present invention relates to the use of telluroxides as mild and selective oxidizing agents serving to oxidize certain functions, notably >CS groups, in the presence of other relatively...
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4370345 |
Phenoxyphenylpropenyloxycarbonyl compounds and their use as insecticides and acaricides
Compounds of the formula ##STR1## wherein R 1 denotes H, halogen, alkyl or CF 3 , R 2 denotes H, halogen, alkyl or CF 3 , R 3 denotes H, halogen, CN or alkyl, R 4 denotes H, halogen, alkyl,...
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4367344 |
Process for the preparation of 1-amino-cyclopropane-carboxylic acid compounds
A process for the preparation of 1-amino-cyclopropane-carboxylic acid or a derivative thereof of the general formula ##STR1## in which R 1 represents hydrogen or alkyl and R 2 represents...
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4365032 |
Monoester compound of 2,2-alkylidene bis(4,6-di-substituted phenol)
A monoester compound of a 2,2'-alkylidene bis(4,6-di-substituted phenol) useful as an antioxidant in synthetic polymers having good resistant to oxides of nitrogen fumes, represented by the formula...
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4358459 |
Cyclopropane carboxylic acid and process for their production and use
There are prepared new cyclopropane carboxylic acid esters, particularly the tetrahydrobenzyl ester. They have insecticide and ovicide activity. The compounds are prepared by known methods of...
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4358409 |
Preparation of styryl cyclopropane insecticide intermediates
Styryl-cyclopropane derivatives of the formula ##STR1## in which R 9 represents independently of one another when n=2, halogen, cyano, nitro, or an optionally halogen-substituted alkyl, alkoxy,...
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4356187 |
Novel esters of 2-methyl-3-allyl-4-substituted-cyclopent-2-ene-1-yl
Novel esters of the formula ##STR1## wherein R 1 and R 2 are individually selected from the group consisting of carbamoyl and R 1 ' and R 2 ', R 1 ' and R 2 ' are individually selected from...
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4356127 |
Preparation of 3-(2,2-dichloro-vinyl)-2,2-dimethyl-cyclopropane-1-carboxylic acid derivatives
A process for the preparation of a 3-(2,2-dichlorovinyl)-2,2-dimethyl-cyclopropane-1-carboxylic
acid derivative of the formula ##STR1## in which Z is acetyl, cyano, carbamoyl, alkoxycarbonyl or...
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4350824 |
Process for the preparation of 1,1-dichloro-alkenes
A process for the preparation of a 1,1-dichloroalkene of the formula ##STR1## in which R 1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl...
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4349567 |
Dihalovinylcyclopropanecarboxylic acid esters and their use in pest control
Cyclopropanecarboxylic acid esters of the formula ##STR1## wherein R 1 is hydrogen, halogen, methyl, trifluoromethyl or methoxy, and X 1 and X 2 are each halogen. A process for producing the...
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4348535 |
Substituted lactones and processes for their preparation
There are disclosed substituted lactones of the formula ##STR1## wherein A stands for --CH--CH 2 X (X being Cl, Br or OH), --CHY--CHY-- (Y being Cl or Br), or ##STR2## and R 1 , R 2 and R 3 are...
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4348408 |
Pesticidal α-allenyl-3-phenoxybenzyl-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopr opane-1-carboxylates
The invention describes cyclopropanecarboxylic acid α-allenyl-3-phenoxybenzyl esters of the formula ##STR1## wherein X 1 is halogen and each of Y 1 and Y 2 is hydrogen or halogen, a process for...
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4345090 |
Process for preparing menthyl esters of enantiomers of chiral 3-(2,2-dichloro- and -dibromo-vinyl)-2,2-dimethylcyclopropanecarboxylic acids
A substantially pure compound selected from the group consisting of the d-menthyl esters of 1RS-cis-, 1RS-cis/trans-, 1R-cis-, 1S-cis-, 1R-trans- and 1S-trans-3-(2,2-dichloro- and...
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4344894 |
Process for the preparation of cyclopropane carboxylic acid esters
3-(Halogenovinyl- or propenyl-)-2,2-dimethyl cyclopropane-1-carboxylic acid esters, which are precursors of, or may themselves be, pyrethroid insecticides, are prepared by the reaction of certain...
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4342704 |
Process for the preparation of 1,1-dichloroalkenes
A process for the preparation of a 1,1-dichloroalkene of the formula ##STR1## in which R 1 is hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, aralkyl or aryl radical, and R 2 is...
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4336266 |
Insecticidal 2,2-dimethyl-3-(2',2'-dihalovinyl)-cyclopropane carboxylic acid 3-halophenoxy-α-vinylbenzyl esters
The invention relates to vinylcyclopropanecarboxylic acid 3-phenoxy-α-vinylbenzyl esters of the formula ##STR1## wherein each of X 1 and Y is fluorine, chlorine or bromine, processes for the...
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4335253 |
Preparation of dihalovinyl compounds
A process for the preparation of dihalovinyl compounds of the formula ##STR1## wherein each Hal is fluorine, chlorine or bromine, R 1 is an optionally substituted hydrocarbyl group, R 2 is a...
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4335252 |
Insecticidal pyrethroid enantiomer pair
An insecticidal enantiomer pair consisting essentially of a substantially equimolar mixture of S-4-phenyl-2-indanyl 1R, cis-3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethylcycl
opropanecarbox...
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4334091 |
Process for preparing halovinyl cyclopropane carboxylic acid salts
This invention relates to new compositions particularly suited for producing insecticidal intermediates. These compositions are mono basic salts of halovinyl cyclopropane derivatives particularly...
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4333950 |
(+)-4-Substituted-2-indanol insecticidal ester derivatives
Novel compounds of the formula ##STR1## are disclosed in which R 1 is a phenyl, phenoxy, phenylthio, benzyl or heterocyclic radical which may be substituted, R 2 is hydrogen, a...
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4332962 |
Preparation of cyclopropane carboxylic acid esters
Process for the preparation of 3(2,2-dihalovinyl)-2,2-dimethyl cyclopropane carboxylic acids, especially permethrin acid ethyl ester, by reacting a diazoacetic acid ester with a...
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4332815 |
Insecticidal perhaloalkylvinylcyclopropanecarboxylates
Perhaloalkylvinylcyclopropanecarboxylates having the general formula ##STR1## are disclosed wherein one of Y and Z is a perhaloalkyl group. Compounds in which R is hydroxy, halogen or lower alkoxy...
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4331682 |
Cyclopropanecarboxylic acid-α-haloethynyl-m-phenoxybenzyl esters and their use for combating insect pests
Cyclopropanecarboxylic acid-α-haloethynyl-m-phenoxybenzyl esters of the formula ##STR1## wherein R 1 is ##STR2## R 2 is hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl or methoxy,...
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4330482 |
Process for the preparation of halogenoalkenes
In the process for the production of a halogenoalkene of the formula ##STR1## in which R 1 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkenyl, aralkyl, aralkenyl or...
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4328168 |
Process for the preparation of vinylcyclopropane derivatives
This invention provides a convenient and commercially adaptable process for the preparation of vinylcyclopropane derivatives in high yield. For the process an alkylating agent and activated...
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4327109 |
Novel alkadienylcyclopropanecarboxylates
A compound of the formula, ##STR1## wherein R 1 , R 2 , R 3 and R 4 are respectively hydrogen atom or methyl, R 5 is a member of ##STR2## wherein R 6 is hydrogen atom or methyl, R 7 is...
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4322432 |
Cyclopropanecarboxylic acid alkynyl esters, processes for producing them, and their use as pesticides
Cyclopropanecarboxylic acid alkynyl esters of the formula I ##STR1## wherein R 1 is unsubstituted or substituted phenyl or thienyl, R 2 is hydrogen, alkyl having 1-6 C atoms, alkenyl having 2-6 C...
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4321406 |
Vinylcyclopropane monomers and oligomers
Vinylcyclopropane monomers and oligomers, obtained by the reaction of a diol or ether diol with 2-vinylcyclopropane-1,1-dicarboxylic acid or a lower alkyl ester thereof, are provided. These...
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4318922 |
Combating pests with fluorine-substituted 2,2,3,3-tetramethylcyclopropane-1-carboxylic acid benzyl esters
2,2,3,3-Tetramethylcyclopropanecarboxylic acid fluorine-substituted-benzyl esters of the formula ##STR1## in which R 1 is hydrogen, cyano, or alkyl, alkenyl or alkynyl each with up to 4 carbon...
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4313956 |
Novel sypathomimetic amine prodrugs
Novel, transient prodrug forms of the phenolic dihydroxy sympathomimetic amines have (i) the structural formula (I): ##STR1## wherein X is O, S or NR 5 ; n is 1 or 2; R 1 is the...
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4313856 |
Perfume compositions containing oxygenated ionone derivatives
The preparation and use as odorant and/or flavorant of compounds having the formula: ##STR1## wherein R represents a butyl, but-2-en-yl or 1,3-butadienyl group.
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4312817 |
Imino derivatives
Novel imino derivatives of esters of 3-formyl-cyclopropane-1-carboxylic acids in their various isomeric forms and mixtures thereof of the formula ##STR1## wherein Z is an organic residue of a...
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4311706 |
Novel dopa/dopamine prodrugs
Novel, transient prodrug forms of dopa and dopamine have (i) the structural formula (I): ##STR1## wherein each R is independently selected from the group consisting of hydrogen, R 3 -CO- and...
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4310464 |
Lactones
4-β, β-dichlorovinyl (or dibromovinyl)-3,3-dimethylbutyrolactones are prepared from 1,1-dichloro (or dibromo)-4-methylpenta-1,3-diene by reacting with an acid of formula CH 2 R.CO 2 H in...
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4309555 |
Novel cyclopropane derivatives
1-(Dicyano-trimethylsiloxy)methyl-2,2-dimethylcyclopropane derivatives of the formula ##STR1## wherein R 1 is ##STR2## and X 1 is halogen. A process for the production of these compounds and...
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4307244 |
Process for the preparation of methyl 2,2-dimethyl, -3-(2'methyl-propenyl)-cyclopropane-1,1-dicarboxylate
Novel penten-2-yl derivatives of the formula in the trans form ##STR1## wherein R is selected from the group consisting of hydrogen and acetyl and to a novel process for the preparation of methyl...
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4307243 |
Process of preparing dihalovinyl compounds
Conversion of esters (R 1 )(R 2 )C(C Hal 3 )OX, X being-P Hal 2 , --C(O)OR 3 or ##STR1## R 1 , R 3 and R 4 being optionally substituted hydrocarbyl groups and R 2 methyl or hydrogen, with zinc...
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4307033 |
Preparation of 3,3-dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives and intermediates therefor
3,3-Dimethyl-cyclopropane-1,1,2-tricarboxylic acid derivatives of the formula ##STR1## in which R is alkyl, and R 1 and R 2 each is alkoxycarbonyl or cyano, with the proviso that at least one...
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4305885 |
Preparation of cyclopropane-carboxylic acid derivatives and intermediates therefor
A perfluoroalkane-sulphinic acid of the formula R F --SO 2 H is reacted with a diene at -20° to +20° C. to form the new intermediate ##STR1## in which R 3 -R 8 are hydrogen or various organic...
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