Title:
Preparation of astaxanthin
Document Type and Number:
WIPO Patent Application WO2001081301
Kind Code:
A3
Abstract:
The present invention provides a method for preparing astaxanthin from zeaxanthin. Specifically, the present invention provides a method for said conversion using a halogenating agent with the salt of chloric or bromic acid in an inert solvent.
Inventors:
SCHLOEMER GEORGE C (US)
DAVIS JEFFERY L (US)
DAVIS JEFFERY L (US)
Application Number:
PCT/US2001/013295
Publication Date:
April 25, 2002
Filing Date:
April 25, 2001
Export Citation:
Assignee:
SCHLOEMER GEORGE C (US)
DAVIS JEFFREY L (US)
PRODEMEX SA DE CV (MX)
DAVIS JEFFREY L (US)
PRODEMEX SA DE CV (MX)
International Classes:
C07C45/45; C07C49/743; C07C403/24; C12P23/00; C07C; (IPC1-7): C07C403/24
Foreign References:
| US4212827A | 1980-07-15 |
Other References:
SURMATIS, JOSEPH D. ET AL: "A total synthesis of astaxanthin dimethyl ether", J. ORG. CHEM. (1967), 32(1), 180-4, XP002190946
COOPER, ROBIN D. G. ET AL: "Carotenoids and related compounds. XXXII. Synthesis of astaxanthin, phoenicoxanthin, hydroxyechinenone, and the corresponding diosphenols", J. CHEM. SOC., PERKIN TRANS. 1 (1975), (21), 2195-204, XP002190947
LEFTWICK, ALLAN P. ET AL: "Total synthesis of astaxanthin and hydroxyechinenone", CHEM. COMMUN. (1967), (I), 49-50, XP002190948
KIENZLE, FRANK ET AL: "Synthesis of optically active natural carotenoids and structurally related compounds. II. Synthesis of (3S,3'S)-astaxanthin", HELV. CHIM. ACTA (1978), 61(7), 2609-15, XP002190949
COOPER, ROBIN D. G. ET AL: "Carotenoids and related compounds. XXXII. Synthesis of astaxanthin, phoenicoxanthin, hydroxyechinenone, and the corresponding diosphenols", J. CHEM. SOC., PERKIN TRANS. 1 (1975), (21), 2195-204, XP002190947
LEFTWICK, ALLAN P. ET AL: "Total synthesis of astaxanthin and hydroxyechinenone", CHEM. COMMUN. (1967), (I), 49-50, XP002190948
KIENZLE, FRANK ET AL: "Synthesis of optically active natural carotenoids and structurally related compounds. II. Synthesis of (3S,3'S)-astaxanthin", HELV. CHIM. ACTA (1978), 61(7), 2609-15, XP002190949
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