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Usage

Uses

Used in Agricultural Applications:
Cyhalothrin Isomer is used as an insecticide for controlling various pests in agricultural settings. It is effective against a broad spectrum of insects, including aphids, whiteflies, and caterpillars, which can cause significant damage to crops. Its quick action and residual activity make it a popular choice for farmers to protect their crops and ensure a healthy yield.
Used in Public Health Applications:
In addition to its agricultural uses, Cyhalothrin Isomer is also employed in public health applications to control disease-transmitting insects such as mosquitoes, flies, and ticks. Its ability to quickly kill these insects helps in reducing the spread of diseases like malaria, dengue, and Lyme disease, thus contributing to improved public health.
Used in Veterinary Applications:
Cyhalothrin Isomer is also used in veterinary medicine to protect livestock from pests such as lice, mites, and flies. By controlling these parasites, it helps in maintaining the health and productivity of animals, as well as preventing the transmission of diseases from animals to humans.
Used in Home and Garden Applications:
For home and garden use, Cyhalothrin Isomer is utilized to control various household and garden pests, including ants, cockroaches, and spiders. Its residual activity ensures long-lasting protection, creating a more comfortable living environment and maintaining the aesthetic appeal of gardens.

InChI:InChI=1/C23H19ClF3NO3/c1-22(2)17(12-19(24)23(25,26)27)20(22)21(29)31-18(13-28)14-7-6-10-16(11-14)30-15-8-4-3-5-9-15/h3-12,17-18,20H,1-2H3/b19-12-/t17-,18-,20-/m0/s1

Upstream product

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• 39515-47-4 2-hydroxy-2-(3-phenoxyphenyl)acetonitrile 
• 82561-08-8 N-(α-cyano-3-phenoxybenzyl)-N,N,N-trimethylammonium methylsulfate 
• 108-10-1 4-methyl-2-pentanone 
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• 39515-51-0 3-Phenoxybenzaldehyde 

Relevant academic research and scientific papers

AGRICULTURAL CHEMICALS

The present invention relates to derivatives of compounds which are known to be of use in the field of agriculture. These derivatives are differentiated from the parent active compound by virtue of being redox derivatives of the active compound. This means that one or more of the functional groups in the active compound has been converted to another group in one or more changes one or more of which may be considered to represent a change of oxidation state relative to the groups in the original compound. We refer to these compounds generally as redox derivatives. The compounds are of use as insecticides, herbicides and insect repellents.

AGRICULTURAL CHEMICALS

The present invention relates to derivatives of compounds which are known to be of use in the field of agriculture. These derivatives are differentiated from the parent active compound by virtue of being redox derivatives of the active compound. This means that one or more of the functional groups in the active compound has been converted to another group in one or more changes one or more of which may be considered to represent a change of oxidation state relative to the groups in the original compound. We refer to these compounds generally as redox derivatives. The compounds are of use as insecticides, herbicides and insect repellents.

PROCESS FOR PRPARING GAMMA-CYHALOTHRIN

A process for the preparation of gamma-cyhalothrin comprising steps of a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-l-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-l-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride and b) esterifying 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-l-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride with the (S)-cyanohydrin of 3-phenoxy benzaldehyde (III).

Process for the preparation of pyrethroid type ester compounds

The present invention relates to a novel process for the preparation of insecticidally active esters of the general formula (I) STR1 wherein R1 and R2 are the same or diferent from each other and represent a hydrogen or a halogen atom; R3 represents STR2 (wherein R4 and R5 represent a chlorine or bromine atom or a methyl group when R4 is identical to R5, but R4 represents a chlorine or bromine atom or a methyl group and R5 represents a trifluoromethyl group when R4 is different from R5, and R6 represents a halogen atom or a difluoromethoxy group); and R8 represents a hydrogen or a cyano group. The characteristic of the present invention is a one-step procedure comprising directly condensing an organic acid, an aldehyde (and a water-soluble cyanide) in the presence of a phase transfer catalyst and a water-soluble inorganic base by the use of a sulphonyl compound as a condensing reagent.

Cyanophenoxybenzyl amines

The invention concerns novel compounds of the formula I STR1 wherein A, B, D and E are chosen from hydrogen, halogen, C1 to C6 alkyl, C1 to C6 haloalkyl and C1 to C6 alkoxy and Z is a tertiary or quaternary amino group. The compounds are useful intermediates for the preparation of pyrethroids. In further embodiments the invention provides processes for the preparation of the compounds of formula I and processes for the synthesis of pyrethroids utilizing the compounds of formula I.

Preparation of esters

Certain alpha-cyano esters are prepared by reacting an acyl halide with an aldehyde in a substantially water-immiscible aprotic solvent and an aqueous solution of water-soluble cyanide salt in the presence of an amine or cryptate rate-promoting agent.

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 are novel intermediates for preparation of insecticidal esters in which R is --OR1 where R1 is a wide variety of alcohol residues. The insecticidal efficacy and preparation of the compounds and intermediates therefor are described and exemplified.

Preparation of esters

Certain alpha-cyano esters are prepared by reacting an acyl halide with an aldehyde in a substantially water-immiscible aprotic solvent and an aqueous solution of water-soluble cyanide salt in the presence of an amine or cryptate rate-promoting agent.