Patent · US Active

Intermediates for the vitamin A and β-carotene synthesis

US9309194B2 · kind B2 · utility

0Cited by

3References

7Claims

0Family size

Assignee

DSM IP ASSETS B.V. · NL

Inventors

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

Key dates

Filing date	Jun 14, 2012
Grant date	Apr 12, 2016
Priority date	—
Expiry date	Jun 14, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C2601/16
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to compounds of formula (I) wherein R1 signifies a C1-C15 alkyl moiety or a C2 to C18 alkenyl moiety, to their process of production as well as to their use in organic synthesis, especially as intermediates (building blocks) in the synthesis of vitamin A or β-carotene or derivatives thereof, or other carotenoids, e.g. canthaxanthin, astaxanthin or zeaxanthin, preferably vitamin A.

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