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Preparation of 4,4-diketo--carotene derivatives
Preparation of 4,4-diketo--carotene derivatives
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机译:4,4-二酮-胡萝卜素衍生物的制备
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摘要
A method of preparing beta-carotene derivatives such as canthaxanthin and astaxanthin is described. The method employs an in situ system to generate hypobromous acid as the oxidizing agent using a salt of sulfite, hydrogen sulfite or bisulfite in combination with a bromate salt. Astaxanthin and canthaxanthin are obtained in good yield with a significantly reduced reaction time.
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