TRANSFORMATION D'OXYDES D'ALKYLES ET DE POLYFLUOROALKYLES PAR LES ACIDES DE LEWIS. INFLUENCE DES RADICAUX ALKYLES.

Article abstract of DOI:10.1016/S0022-1139(00)85062-9

The generation of perfluoroalkanoyl fluorides from perfluoroalkyl ethers by Lewis acids R_HOCF2R_F -> FR_H + R_FCOF depends mainly upon the nature of the alkyl R_H radical.It is necessary to use R_H groups with donor character and also electrophilic groups present on the radicals can facilitate the breaking of the R_H-O bond.As examples, ethers with Me3SiCH2CH2 or CH2=CH-CH2 groups allowed reactions to occur readily at room temperature or below using common Lewis acids such as ZnCl2, BF3-Et2O, AlCl3.