GB633748A - 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
GB633748A
GB633748A GB32551/47A GB3255147A GB633748A GB 633748 A GB633748 A GB 633748A GB 32551/47 A GB32551/47 A GB 32551/47A GB 3255147 A GB3255147 A GB 3255147A GB 633748 A GB633748 A GB 633748A
Authority
GB
United Kingdom
Prior art keywords
vitamin
relating
production
acetone
aluminium
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
GB32551/47A
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
Priority to BE478432D priority Critical patent/BE478432A/xx
Application filed by Distillation Products Inc filed Critical Distillation Products Inc
Priority to GB32551/47A priority patent/GB633748A/en
Priority to FR1020801D priority patent/FR1020801A/en
Publication of GB633748A publication Critical patent/GB633748A/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
    • 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)

Abstract

A compound of the formula <FORM:0633748/IV (b)/1> is obtained by reacting b -ionylidene ethanol with an aluminium or magnesium alkoxide, e.g. aluminium butoxide or isopropoxide or magnesium butoxide, in the presence of acetone. The reaction is preferably carried out using a large excess of acetone, e.g. 10-15 mole. excess. Detailed examples are given.
GB32551/47A 1946-12-24 1946-12-24 Improvements in or relating to the production of a vitamin a intermediate Expired GB633748A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE478432D BE478432A (en) 1946-12-24
GB32551/47A GB633748A (en) 1946-12-24 1946-12-24 Improvements in or relating to the production of a vitamin a intermediate
FR1020801D FR1020801A (en) 1946-12-24 1947-12-24 Process for the production of an intermediate product of alpha vitamin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32551/47A GB633748A (en) 1946-12-24 1946-12-24 Improvements in or relating to the production of a vitamin a intermediate

Publications (1)

Publication Number Publication Date
GB633748A true GB633748A (en) 1949-12-19

Family

ID=10340358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32551/47A Expired GB633748A (en) 1946-12-24 1946-12-24 Improvements in or relating to the production of a vitamin a intermediate

Country Status (3)

Country Link
BE (1) BE478432A (en)
FR (1) FR1020801A (en)
GB (1) GB633748A (en)

Also Published As

Publication number Publication date
FR1020801A (en) 1953-02-11
BE478432A (en)

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