ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
- CAS NO.：59609-49-3
- Empirical Formula: C10H14Cl2O2
- Molecular Weight: 237.12
- EINECS: 261-826-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 22:57:54
What is ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate?
Chemical properties
Ethyl permethrin is a colorless and transparent liquid, bp93～94℃/101pa, 78～88℃/27pa, n20D 1.4833, relative density 1.1170, insoluble In water, soluble in benzene, toluene, chloroform and other organic solvents.
The Uses of ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
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.
Properties of ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
| 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 for ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
Computed Descriptors for ethyl 3-(2,2-dichlorovinyl)-2,2-dimethyl-1-cyclopropanecarboxylate
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