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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Publication of FR1223651ApublicationCriticalpatent/FR1223651A/fr
C07C403/00—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
C07C403/24—Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by six-membered non-aromatic rings, e.g. beta-carotene
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FR786474A1958-02-141959-02-12Procédé pour la préparation de caroténoïdes, en particulier de canthaxanthine et de rhodoxanthine
ExpiredFR1223651A
(fr)