Method for preparing unsaturated fatty hydroxyacids

Organic compounds -- part of the class 532-570 series – Organic compounds – Fatty compounds having an acid moiety which contains the...

Reexamination Certificate

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C554S223000

Reexamination Certificate

active

07928254

ABSTRACT:
The invention concerns a method for preparing a compound of formula (I), wherein: R3and R1represent in particular H and n is greater than 4, said preparation method including performing a Wittig-Horner reaction with a phosphonate on a lactol, so as to obtain a hydroxyester and, optionally a saponification reaction of said hydroxyester.

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