NEW METHOD FOR PREPARING UNSATURATED FATTY HYDROXY-ACIDS

摘要

The invention relates to a method for preparing a compound of the following formula (I) in which a and b are integers equal to or higher than 0, and R₁, R₂ and R₈ essentially represent H, said preparation method including a step of protecting the alcohol function of the compound of the formula (II-a) in which a, b and R₂ are such as defined above in the formula (I), and R₆ and R₇ essentially represent a hydrogen atom, wherein said step is followed by a step comprising the oxidant cut of the double bond and the step comprising the implementation of a Wittig-Horner reaction.