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US 2015/0099894 A1Published application
Process for the production of 4-alkanoyloxy-2-methylbutanoic acid
AssigneeDsm IP Assets B.V.
InventorsWerner Bonrath, Jan Schütz, Bettina Wüstenberg, Thomas Netscher
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Abstract
The present invention relates to an improved process for the production of 4-alkanoyloxy-2-methylbutanoic acid, as well as to the use of such compounds in organic syntheses, especially in processes forming intermediates (building blocks) for the synthesis of organic compounds comprising isoprene (isoterpene) units, such as β-carotene or other carotenoids (e.g. canthaxanthin, zeaxanthin or astaxanthin) or as vitamin E or vitamin A as well as other structurally similar compounds.
Claims12
A process of production of a compound of formula (I)
- wherein R signifies a C1-C15 alkyl moiety or a C2-C18 alkenyl moiety,
- wherein a compound of formula (II)
- with R as defined as for compound of formula (I)
- is oxidised by using an oxygen-containing gas and
- wherein
- at least one transition metal salt is used as a catalyst.
3 more elements
Dependencies are inferred from the claim text.