A convenient preparation of vicinal perfluoroalkyl enol ethers, by the action of alcohols on 1-bromo-1-perfluoroalkylethylenes in the presence of potassium hydroxide, is described. Some aspects of their reactivity are reported.
Aldehydes R(F)CH2CHO (R(F) is a linear perfluoroalkyl chain) have been obtained in the addition reaction of R(F)I to vinyl acetate in the presence of zinc. R(F)CH2CHIOAc is formed as an intermediate in the course of the reaction. Under appropriate conditions, R(F)CH2CHO and its acylal or acetal derivatives are obtained in good yields.
Laurent,Blancou,Commeyras
p. 2489 - 2492
(2007/10/02)
Alkoxyperfluoroalkylation of Enol Ethers Catalysed by Iron Complexes
The iron-catalysed coupling reaction of three components, perfluoroalkyl iodides, enol ethers and alcohols, in the presence of a base gives directly perfluoroalkyl-substituted acetals in good to excellent yields.