GB813517A - Improvements in or relating to methods of producing vitamin a - Google Patents

Improvements in or relating to methods of producing vitamin a

Info

Publication number
GB813517A
GB813517A GB27754/56A GB2775456A GB813517A GB 813517 A GB813517 A GB 813517A GB 27754/56 A GB27754/56 A GB 27754/56A GB 2775456 A GB2775456 A GB 2775456A GB 813517 A GB813517 A GB 813517A
Authority
GB
United Kingdom
Prior art keywords
vitamin
aldehyde
ester
ionylidene
acetic acid
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
GB27754/56A
Other languages
English (en)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB813517A publication Critical patent/GB813517A/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
    • C07C403/06—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 singly-bound oxygen atoms
    • C07C403/08—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 singly-bound oxygen atoms by hydroxy groups
    • 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
    • C07C403/14—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 doubly-bound oxygen atoms
    • 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
    • C07C403/18—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 nitrogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/16—Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB27754/56A 1955-09-14 1956-09-11 Improvements in or relating to methods of producing vitamin a Expired GB813517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL813517X 1955-09-14

Publications (1)

Publication Number Publication Date
GB813517A true GB813517A (en) 1959-05-21

Family

ID=19838789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27754/56A Expired GB813517A (en) 1955-09-14 1956-09-11 Improvements in or relating to methods of producing vitamin a

Country Status (4)

Country Link
DE (1) DE1041950B (enrdf_load_stackoverflow)
FR (1) FR1169570A (enrdf_load_stackoverflow)
GB (1) GB813517A (enrdf_load_stackoverflow)
NL (1) NL99527C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110950791A (zh) * 2019-12-09 2020-04-03 万华化学集团股份有限公司 一种维生素a及维生素a酯制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2623805B1 (fr) * 1987-12-01 1990-04-13 Rhone Poulenc Sante Procede de preparation de la vitamine a

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857952C (de) * 1950-07-12 1952-12-04 Philips Nv Verfahren zur Herstellung von ª‰-Jonyliden-acetaldehyd
FR1022925A (fr) * 1949-07-16 1953-03-11 Philips Nv Procédé de préparation de l'aldéhyde beta-ionylidène-acétique et de dérivés de ce corps
DE918987C (de) * 1950-11-25 1954-10-11 Eastman Kodak Co Verfahren zur Synthese von Vitamin-A-wirksamen Verbindungen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110950791A (zh) * 2019-12-09 2020-04-03 万华化学集团股份有限公司 一种维生素a及维生素a酯制备方法
CN110950791B (zh) * 2019-12-09 2021-12-14 万华化学集团股份有限公司 一种维生素a及维生素a酯制备方法

Also Published As

Publication number Publication date
FR1169570A (fr) 1958-12-31
DE1041950B (de) 1958-10-30
NL99527C (enrdf_load_stackoverflow)

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