Aldehydes RFCH2CHO (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. RFCH2CHIOAc is formed as an intermediate in the course of the reaction. Under appropriate conditions, RFCH2CHO and its acylal or acetal derivatives are obtained in good yields.
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.
A convenient preparation of vicinal perfluoroalkyl enol ethers, by the action of alcohols on 1-bromo-1-perfluoroalkylethylenes to the presence of potassium hydroxide, is described. Some aspects of their reactivity are reported. (C) 2004 Elsevier B.V. All rights reserved.
Synthése de fluoroalkyl éthanl : RFCH2CHO
作者:Ph. Laurent、H. Blancou、A. Commeyras
DOI:10.1016/s0040-4039(00)92222-6
日期:1992.4
Aldehydes RFCH2CHO (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. RFCH2CHIOAc is formed as an intermediate in the course of the reaction. Under appropriate conditions, RFCH2CHO and its acylal or acetal derivatives are obtained in good yields.