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Über einige cis-Formen des Canthaxanthins (1957)

Gansser, Ch. ; Zechmeister, L.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 40 (1957), S. 1757-1767

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The fungal carotenoid, canthaxanthin, C40H52O2 (4,4′-diketo-β-carotene), was converted by some thermal and photochemical treatments into a stereoisomeric mixture that was resolved chromatographically. Thus, six cis forms, termed “neo-canthaxanthins A-F”, were obtained, A-C in crystalline form, the latter being identical with central-monocis-canthaxanthin prepared by Isler et al. by total synthesis. The spectral characteristics of these stereoisomers have been studied and some tentative configurational assignments proposed.

Additional Material: 10 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19570400623

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