78548-59-1

Basic information

• Product Name: (+/-) Trans Ethyl 3-(β,β-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate
• Synonyms: (+/-) Trans Ethyl 3-(β,β-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate
• CAS NO: 78548-59-1
• Molecular Weight: 237.126
• Mol File: 78548-59-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: (+/-) Trans Ethyl 3-(β,β-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: (+/-) Trans Ethyl 3-(β,β-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate(78548-59-1)
• EPA Substance Registry System: (+/-) Trans Ethyl 3-(β,β-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylate(78548-59-1)

Safety Data

• Hazardous Substances Data: 78548-59-1(Hazardous Substances Data)

Upstream product

• 623-73-4 diazoacetic acid ethyl ester 
• 55667-43-1 1,1-dichloro-4-methyl-penta-1,3-diene 
• 63928-95-0 (+/-) Trans Ethyl-3-(β,β-Dichloro-α-Tosyloxyethyl)-2,2-Dimethylcyclopropane-1-Carboxylate 

Downstream Products

• 55701-05-8 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acid 

Relevant articles and documents

Ester synthesis

A novel process is described for the preparation of compounds of formula STR1 wherein R2 and R3 are each chloro or bromo; X is carboxyl, nitrile, optionally substituted carbonamide, carbonyl halide or an ester group. Those compounds wherein X is an appropriate ester group --COOB where B is an aryl group such as m-phenoxybenzyl are known insecticides; compounds where X is other than --COOB may be suitably converted thereto. The novel process consists of a series of steps from the corresponding acetyl compound of formula STR2 which comprises halogenation, reduction, esterification and finally elimination reactions.