ethyl cis,trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate, CAS No. 97-41-6

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97-41-6

Catalog No. EBD2205233

CAS 97-41-6

Name ethyl cis,trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate

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Basic Information

Synonyms: 2,2-dimethyl-3-(2-methyl-1-propenyl)-cyclopropanecarboxylicaciethylester 2,2-dimethyl-3-(2-methylpropenyl)cyclopropanecarboxylicacidethylester 2,2-dimethyl-3-(2-methylpropenyl)-cyclopropanecarboxylicaciethylester chrysanthemicacidethylester chrysanthemum-monocarboxlicacidethylester cyclopropanecarboxylicacid,2,2-dimethyl-3-(2-methyl-1-propenyl)-,ethylester cyclopropanecarboxylicacid,2,2-dimethyl-3-(2-methylpropenyl)-,ethylester ethylchrysanthemumate ethyl(+/-)-cis,trans-chrysanthemate ethylcis,trans-2,2-dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate Ethylchrysanthemumate,mixtureofcisandtrans ethylchrysanthemate,mixedisomerscisandtrans chrysanthemummonocarboxylicacidethylester ethyl(1R,3R)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropanecarboxylate Ethyl2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylate

Molecular Formula: C12H20O2

Molecular Weight: 196.29

MDL Number: MFCD00001304

Categories: Agrochemicals > Pesticide Chemistry > Insecticides Agrochemicals > Pesticide Chemistry > Pesticide Intermediates

Product Description:

Ethyl chrysanthemumate, also known as ethyl chrysanthemate or ethyl 2,2-dimethyl-3-(2-methylprop-1-en-1-yl)cyclopropane-1-carboxylate, is a synthetic pyrethroid acid moiety. It is a key chiral intermediate in the synthesis of various Type I pyrethroid insecticides, such as allethrin, tetramethrin, and phenothrin. The compound itself is not used as a final active ingredient but is esterified with specific alcohols to produce the potent insecticides. The primary industrial application of ethyl chrysanthemumate is as a crucial building block in agrochemical manufacturing. Its cyclopropane carboxylic acid structure, featuring the characteristic gem-dimethyl and isobutenyl groups, forms the core of many first-generation pyrethroids. These synthetic pyrethroids are valued for their high insecticidal activity, rapid knockdown effect, and relatively low mammalian toxicity compared to some older insecticide classes. The synthesis and resolution of the optically active isomers of ethyl chrysanthemumate are of significant importance, as the insecticidal activity is often highly stereospecific. The compound is typically handled as a technical-grade material in chemical production facilities. Proper safety measures are required during its handling due to its chemical nature and its role in producing commercial pesticide formulations.

Physical Properties

Boiling Point: 112 °C/10 mmHg(lit.)

Flash Point: 84 °C

Density: 0.906 g/mL at 25 °C(lit.)

Refractivity: n20/D 1.461(lit.)

Storage: 2-8°C

Analytical Data

Appearance: clear colorless to yellow liquid