METHOD FOR MAKING OMEGA BROMOALKANOIC ACIDS AND ESTERS

The invention relates to a process for the continuous synthesis of a compound of formula (II) Br-(CH2)n+2-COOR, comprising a stage consisting of:(a) the hydrobromination of a compound of formula (I) CH2═CH-(CH2)n-COOR:where, in the formulae (I) and (II), n is an integer of between 7 and 9, and R is...

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Bibliographic Details
Main Authors DEVAUX, Jean-François, LE TOULLEC, Cyrille, CAMBON, Alain
Format Patent
LanguageEnglish
French
German
Published 17.05.2023
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:The invention relates to a process for the continuous synthesis of a compound of formula (II) Br-(CH2)n+2-COOR, comprising a stage consisting of:(a) the hydrobromination of a compound of formula (I) CH2═CH-(CH2)n-COOR:where, in the formulae (I) and (II), n is an integer of between 7 and 9, and R is chosen from H or a linear or branched alkyl radical comprising from 1 to 10 carbon atoms, in particular methyl, ethyl, isopropyl or propyl,with HBr in the presence of a radical initiator and of at least one solvent;said process being characterized in that the reaction is carried out in the absence of benzene and of toluene and in that, in stage (a), the HBr is injected into the reaction mixture in the gaseous form and in stoichiometric excess.
Bibliography:Application Number: EP20210749668