Pharmaceutical Intermediates

Ethyl 1-(trifluoroMethyl)cyclopropanecarboxylate CAS:139229-57-5 98%min

Chemical Name:Ethyl 1-(trifluoroMethyl)cyclopropanecarboxylate
CAS.NO:139229-57-5
Synonyms:Ethyl 1-(trifluoromethyl)cyclopropanecarboxylate; 1-Trifluoromethyl-cyclopropanecarboxylic acid ethyl ester
Molecular Formula:C7H9F3O2
Molecular Weight:182.1403696
 
Description:
1-(ethoxycarbonyl)cyclopropanecarboxylic acid,sulfurtetrafluoride,dichloromethane and hydrogen fluoride were introduced at -70oC. into a stirred autoclave. The mixtur e was heated at 80oC. and the gaseous constituents were destroyed, after cooling the autoclave to 35oC. by passing them into a wash tower filled with potassium hydroxide. The residue w as dissolved in dichloromethane. The solution was washed with saturated sodium bicarbonate solution, after which the organic phase was dried with sodium sulfate and potassiumfluor ide and was separated into the individual components by distillation. 
 
Specification:
Appearance Colorless transparent liquid
Purity ≥98.5%


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