Abstract
Arylperfluoroalkyl ethers ArOCF 2CF 2X (X = F, OC 3F 7) were prepared from vinyl ethers ArOCF = CFX by reaction with elemental fluorine at low temperatures. The best solvent for fluorination was a mixture of chloroform and fluorotrichloromethane. Yields were improved by adding ethanol to the solvent mixture. The starting olefins were prepared by decarboxylation of the acid salts ArOCF 2CF 2CO 2Na (X = F) or by reaction of areneoxides with perfluoropropylvinyl ether (X = OC 3F 7).
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