| 摘要 |
<p>The invention concerns a method for preparing hydrofluorocarbon of formula (I): R1 CF¿2?R wherein: R?1¿ = H, alkyl or aryl; and R = H, F, alkyl or aryl; characterised in that it consists in reacting, in liquid or gas phase, and in the presence of a catalyst, anhydrous hydrofluoric acid on a compound of formula (II) wherein: p = 0 or 1; M = O, S; R1 is as defined in formula (I); R2 = H, alkyl, aryl when p = 0, and alkyl when p = 1; R?3 and R4¿ = alkyl.</p> |
