ISSN:
0018-019X
Keywords:
Chemistry
;
Organic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
11,11′-Di·cis-β-carotene was synthesized awarding to a new scheme C14 + C12 + C14 = C40 by condensing the crystalline C12-di-acetylenic hydrocarbon 3,8-dimethyl-decatriene-(3,5,7)-diyne-(9) at both ends with β-C14-aldehyde followed by dehydration and partial hydrogenation of the triple bonds. 11,11′-Di-cis-β-carotene shows about one third of the vitamin A activity of all-trans-β-carotene and is structurally related to it in the same way as the important visual pigment neo-b-retinene to retinene. 11,11′-Di-cis-β-carotene is more stable to heat than 15,15′-cis-β-carotene.
Additional Material:
2 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/hlca.19570400517
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