Patent · US Active

Catalytic synthesis of vitamin A intermediate

US9040742B2 · kind B2 · utility

1Cited by

1References

11Claims

0Family size

Assignee

DSM IP ASSETS B.V. · NL

Inventors

Werner Bonrath · Kaiseraugst, CH
Bettina Wuestenberg · Kaiseraugst, CH
Thomas Netscher · Bad Krozingen, DE
Jan Schuetz · Kaiseraugst, CH

Key dates

Filing date	Dec 14, 2012
Grant date	May 26, 2015
Priority date	—
Expiry date	Dec 14, 2032

Classification

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

Abstract

The present invention relates to a process of production of a compound, which is useful as an intermediate (building block) in organic synthesis, especially in the synthesis of vitamin A or β-carotene and derivatives thereof, e.g. canthaxanthin, astaxanthin or zeaxanthin.

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