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Isolation of 9Z beta-carotene from Dunaliella bardawil and its stereoselective synthesis

Yamano, Y.; Yoshizawa, M.; Ito, M.

Journal of Nutritional Science and Vitaminology 45(1): 49-62

1999

ISSN/ISBN: 0301-4800
PMID: 10360241
Accession: 010892487
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An isolation of 9Z beta-carotene from Dunaliella bardawil was accomplished by low-pressure column chromatography with Ca(OH)2 column. Furthermore, it was stereoselectively synthesized by Wittig reaction between the C10-phosphonium salt 2 and 9Z beta-apo-8 -carotenal 1, which was prepared by Emmons-Horner reaction of 9Z beta-ionylidene-acetaldehyde 3 with phosphonates 6 and 7 or 8a and 9.

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