Patent · US Active

Process for the production of 4-alkanoyloxy-2-methylbutanoic acid

US9447017B2 · kind B2 · utility

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1References

17Claims

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Assignee

DSM IP ASSETS B.V. · NL

Inventors

Werner Bonrath · Kaiseraugst, CH
Jan Schütz · Bad Kötzting, DE
Bettina Wüstenberg · Basel, CH
Thomas Netscher · Bad Krozingen, DE

Key dates

Filing date	Jun 5, 2013
Grant date	Sep 20, 2016
Priority date	—
Expiry date	Jun 5, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D311/72
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.