ES388798A1 - Preparation of trans-canthaxanthine - Google Patents

Preparation of trans-canthaxanthine

Info

Publication number
ES388798A1
ES388798A1 ES388798A ES388798A ES388798A1 ES 388798 A1 ES388798 A1 ES 388798A1 ES 388798 A ES388798 A ES 388798A ES 388798 A ES388798 A ES 388798A ES 388798 A1 ES388798 A1 ES 388798A1
Authority
ES
Spain
Prior art keywords
trans
omni
canthaxanthine
canthaxanthines
isomer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES388798A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of ES388798A1 publication Critical patent/ES388798A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • 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

Abstract

Omni-trans-canthaxanthine is prepared by treating a mixture of isomeric canthaxanthines with an organic liquid which is solvent or isomers of canthaxanthines other than the omni-trans-isomer, e.g. a hydrocarbon, ketone, an ester or an ether, separating off any undissolved omni-trans-isomer, heating the resultant solution of the canthaxanthine isomers and thereafter isolating the omni-trans-isomer which is formed during heating. A mixture of isomeric canthaxanthines may be prepared by refluxing beta-carotene and chloroform containing iodine under nitrogen followed by addition of sodium periodate.
ES388798A 1970-03-02 1971-03-02 Preparation of trans-canthaxanthine Expired ES388798A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7007379A FR2082058A5 (en) 1970-03-02 1970-03-02

Publications (1)

Publication Number Publication Date
ES388798A1 true ES388798A1 (en) 1973-05-16

Family

ID=9051497

Family Applications (1)

Application Number Title Priority Date Filing Date
ES388798A Expired ES388798A1 (en) 1970-03-02 1971-03-02 Preparation of trans-canthaxanthine

Country Status (7)

Country Link
BE (1) BE763677A (en)
CH (1) CH516499A (en)
DE (1) DE2109875A1 (en)
ES (1) ES388798A1 (en)
FR (1) FR2082058A5 (en)
GB (1) GB1273952A (en)
NL (1) NL7102333A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115772109A (en) * 2022-12-06 2023-03-10 万华化学集团股份有限公司 Preparation method of canthaxanthin crystal

Also Published As

Publication number Publication date
BE763677A (en) 1971-09-02
FR2082058A5 (en) 1971-12-10
DE2109875A1 (en) 1971-09-30
NL7102333A (en) 1971-09-06
CH516499A (en) 1971-12-15
GB1273952A (en) 1972-05-10

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