ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate

ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Basic information

Product Name:	ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
Synonyms:	ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate;ETHYL 3-(2,2-DICHLOROVINYL)-2,2-DIME-1-CYCLOPROPANECARBOXYLATE;Permethric acid ethyl ester;ethyl dichlorovinyl-2,2-dimethyl-1-cyclopropanecarboxylate;Ethyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate;ethyl(±)cis，trans-2，2-dimethyl-3-2，2-dichloro vinyl cyclopropane carboxylate;2-(2,2-Dichlorovinyl)-3,3-dimethylcyclopropane-1-carboxylic acid ethyl ester;2,2-Dimethyl-3-(2,2-dichlorovinyl)cyclopropanecarboxylic acid ethyl ester
CAS:	59609-49-3
MF:	C10H14Cl2O2
MW:	237.12
EINECS:	261-826-7
Product Categories:
Mol File:	59609-49-3.mol

ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Chemical Properties

Boiling point	338.48°C (rough estimate)
density	1.2191 (rough estimate)
refractive index	1.5410 (estimate)
EPA Substance Registry System	Cyclopropanecarboxylic acid, 3-(2,2-dichloroethenyl)-2,2-dimethyl-, ethyl ester (59609-49-3)

Safety Information

MSDS Information

ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Usage And Synthesis

Chemical Properties	Ethyl permethrin is a colorless and transparent liquid, bp93～94℃/101pa, 78～88℃/27pa, n²⁰_D 1.4833, relative density 1.1170, insoluble In water, soluble in benzene, toluene, chloroform and other organic solvents.
Uses	Ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate is an important intermediate of pyrethroids and can be used to prepare permethrin, cypermethrin, beta-cypermethrin, transfluthrin, cyfluthrin, etc.
Synthesis	Condensation of isobutylene and chloral under the catalysis of AlCl₃ to form a enol, then acetylation, zinc powder reduction and acid-catalyzed isomerization to obtain conjugated dienes, and finally combined with diazoacetic acid Methyl ester (ethyl ester) reacts under the catalysis of copper powder to obtain ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate.

ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate Preparation Products And Raw materials

Raw materials	p-Toluenesulfonic acid-->Sodium ethoxide-->Benzoyl peroxide-->Copper-->Isobutylene-->Chloral-->Gamma Butyrolactone-->16-Dehydropregnenolone acetate-->1-Hexene-->Methyl acetate-->3-Methyl-2-buten-1-ol-->diazoacetic acid-->orthoacetic acid-->2-METHYL-1-BUTENE-->Methylpentadiene
Preparation Products	Permethrin-->3-(2,2-Dichlorovinyl)-2,2-dimethylcyclopropanecarbonyl chloride

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