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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Publication of FR1179945ApublicationCriticalpatent/FR1179945A/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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FR1179945D1954-12-241955-12-20Procédé pour la préparation de 15, 15'-cis-beta-carotène
ExpiredFR1179945A
(fr)