Method for synthesising vitamin A

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United States of America

PATENT NO 11220474
APP PUB NO 20210309596A1
SERIAL NO

17269095

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Abstract

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A method for preparing dehydro-cyclofarnesal from dehydro-farnesal by cyclization in the presence of an acid may include the dehydro-farnesal being obtained from the farnesal by dehydrogenation and may further includes the cyclization being carried out in the presence of an acid selected from Lewis acids, Bronstedt acids, and zeolites. The synthesis of vitamin A using this method further includes the conversion of dehydro-cyclofarnesal into vitamin A.

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ADISSEO FRANCE S A S10 PLACE DU GÉNÉRAL DE GAULLE ANTONY PARC 2 ANTONY 92160

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aubry, Sylvain Calais, FR 2 1
Henryon, Vivien Lyons, FR 8 12
Huet, Robert Paris, FR 13 14
Rey, Patrick Lyons, FR 13 14

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