Acid fluorides and 1,1-difluoroethyl methyl ethers as new organic sources of fluoride for antimony pentachloride-catalyzed halogen-exchange reactions
作者:Keith Ramig、Linas V Kudzma、Ralph A Lessor、Leonid A Rozov
DOI:10.1016/s0022-1139(98)00347-9
日期:1999.2
1-Difluoroethyl methylethers such as the commercial veterinary anesthetic methoxyflurane (2,2-dichoro-1,1-difluoroethyl methylether, 6) decompose in the presence of a catalytic amount of antimony pentachloride. The rate of decomposition is dependent upon the number and position of halogen atoms in the ether: a high degree of halogenation at the methyl group or at the 2-position of the ethyl group makes