GB636935A - Improvements in or relating to the production of a vitamin a intermediate - Google Patents

Improvements in or relating to the production of a vitamin a intermediate

Info

Publication number
GB636935A
GB636935A GB2902/48A GB290248A GB636935A GB 636935 A GB636935 A GB 636935A GB 2902/48 A GB2902/48 A GB 2902/48A GB 290248 A GB290248 A GB 290248A GB 636935 A GB636935 A GB 636935A
Authority
GB
United Kingdom
Prior art keywords
dimethyl
vitamin
relating
production
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
GB2902/48A
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.)
Distillation Products Inc
Original Assignee
Distillation Products Inc
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 Distillation Products Inc filed Critical Distillation Products Inc
Publication of GB636935A publication Critical patent/GB636935A/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
    • C07C403/14—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
    • C07C403/16—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 not being part of —CHO 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
    • C07C403/20—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 carboxyl groups or halides, anhydrides, or (thio)esters thereof
    • 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)
GB2902/48A 1946-07-24 1948-01-31 Improvements in or relating to the production of a vitamin a intermediate Expired GB636935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US262796XA 1946-07-24 1946-07-24

Publications (1)

Publication Number Publication Date
GB636935A true GB636935A (en) 1950-05-10

Family

ID=21830900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2902/48A Expired GB636935A (en) 1946-07-24 1948-01-31 Improvements in or relating to the production of a vitamin a intermediate

Country Status (4)

Country Link
BE (1) BE480274A (pt)
CH (1) CH262796A (pt)
FR (1) FR963812A (pt)
GB (1) GB636935A (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1003726B (de) * 1953-01-22 1957-03-07 Philips Nv Verfahren zur Herstellung von ª‡, ª‰-ungesaettigten Saeurehalogeniden der Vitamin-A-Reihe
DE1045396B (de) * 1953-01-22 1958-12-04 Philips Nv Verfahren zur Herstellung von Vitamin A

Also Published As

Publication number Publication date
FR963812A (pt) 1950-07-21
BE480274A (pt)
CH262796A (de) 1949-07-31

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