GB1551497A – Process for the manufacture of vitamin a acetate
– Google Patents
GB1551497A – Process for the manufacture of vitamin a acetate
– Google Patents
Process for the manufacture of vitamin a acetate
Info
Publication number
GB1551497A
GB1551497A
GB31111/77A
GB3111177A
GB1551497A
GB 1551497 A
GB1551497 A
GB 1551497A
GB 31111/77 A
GB31111/77 A
GB 31111/77A
GB 3111177 A
GB3111177 A
GB 3111177A
GB 1551497 A
GB1551497 A
GB 1551497A
Authority
GB
United Kingdom
Prior art keywords
vitamin
acetate
manufacture
Prior art date
1976-07-26
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
GB31111/77A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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.)
1976-07-26
Filing date
1977-07-25
Publication date
1979-08-30
1977-07-25
Application filed by F Hoffmann La Roche AG
filed
Critical
F Hoffmann La Roche AG
1979-08-30
Publication of GB1551497A
publication
Critical
patent/GB1551497A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
C07C403/12—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 esterified hydroxy groups
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
C07F9/02—Phosphorus compounds
C07F9/28—Phosphorus compounds with one or more P—C bonds
C07F9/54—Quaternary phosphonium compounds
C07F9/5435—Cycloaliphatic phosphonium compounds
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
GB31111/77A
1976-07-26
1977-07-25
Process for the manufacture of vitamin a acetate
Expired
GB1551497A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH952476A
CH601219A5
(en)
1976-07-26
1976-07-26
Publications (1)
Publication Number
Publication Date
GB1551497A
true
GB1551497A
(en)
1979-08-30
Family
ID=4352886
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB31111/77A
Expired
GB1551497A
(en)
1976-07-26
1977-07-25
Process for the manufacture of vitamin a acetate
Country Status (10)
Country
Link
US
(1)
US4254281A
(en)
JP
(1)
JPS5953902B2
(en)
AT
(1)
AT354648B
(en)
BE
(1)
BE857097A
(en)
CH
(1)
CH601219A5
(en)
DE
(1)
DE2733231A1
(en)
FR
(1)
FR2359822A1
(en)
GB
(1)
GB1551497A
(en)
IT
(1)
IT1143735B
(en)
NL
(1)
NL190069C
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5759794A
(en)
*
1980-09-26
1982-04-10
Sharp Corp
Feed quantity controller for printing paper
DE10359433A1
(en)
*
2003-12-17
2005-07-21
Basf Ag
Process for the preparation of vitamin A acetate
FR3085037B1
(en)
*
2018-08-20
2020-09-25
Adisseo France Sas
VITAMIN A SYNTHESIS PROCESS
CN110903190B
(en)
*
2019-12-09
2022-07-12
万华化学集团股份有限公司
Preparation method of vitamin A and vitamin A ester
CN112876395B
(en)
*
2021-01-15
2023-01-13
万华化学集团股份有限公司
Preparation method of vitamin A acetate
CN113214126B
(en)
*
2021-05-19
2023-07-25
万华化学集团股份有限公司
Preparation method of vitamin A acetate
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1068705B
(en)
*
1959-11-12
Badische Anilin- & Soda-Fabrik Aktiengesellschaft, Ludwigshafen/Rhein
Process for the preparation of compounds of the / S-Ionyl’id’enäthyliden series
US2957933A
(en)
*
1957-06-08
1960-10-25
Basf Ag
Production of compounds of the betacyclo-geranylidene series
BE570857A
(en)
*
1957-09-03
NL127397C
(en)
*
1965-12-18
BE755502A
(en)
*
1969-09-09
1971-03-01
Basf Ag
FORMYL-3-BUTANEDIOL-1,2 BISMONOCARBOXYLATES AND PROCESS FOR THEIR PREPARATION
US3671575A
(en)
*
1970-11-30
1972-06-20
Hoffmann La Roche
Process for preparing vitamin a esters
US3932485A
(en)
*
1974-08-28
1976-01-13
Hoffmann-La Roche Inc.
Improved preparation of Wittig salt of vinyl β-ionol
US4081470A
(en)
*
1975-08-22
1978-03-28
Hoffman-La Roche Inc.
Manufacture of polyene compounds via a Wittig reaction in a two phase solvent system
1976
1976-07-26
CH
CH952476A
patent/CH601219A5/xx
not_active
IP Right Cessation
1977
1977-06-29
IT
IT25209/77A
patent/IT1143735B/en
active
1977-07-04
NL
NLAANVRAGE7707391,A
patent/NL190069C/en
not_active
IP Right Cessation
1977-07-22
DE
DE19772733231
patent/DE2733231A1/en
active
Granted
1977-07-22
JP
JP52087506A
patent/JPS5953902B2/en
not_active
Expired
1977-07-22
FR
FR7722580A
patent/FR2359822A1/en
active
Granted
1977-07-25
GB
GB31111/77A
patent/GB1551497A/en
not_active
Expired
1977-07-25
BE
BE179584A
patent/BE857097A/en
not_active
IP Right Cessation
1977-07-25
AT
AT538677A
patent/AT354648B/en
not_active
IP Right Cessation
1979
1979-07-25
US
US06/060,698
patent/US4254281A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
JPS5953902B2
(en)
1984-12-27
NL7707391A
(en)
1978-01-30
JPS5315340A
(en)
1978-02-13
IT1143735B
(en)
1986-10-22
AT354648B
(en)
1979-01-25
ATA538677A
(en)
1979-06-15
NL190069B
(en)
1993-05-17
DE2733231A1
(en)
1978-02-02
CH601219A5
(en)
1978-06-30
NL190069C
(en)
1993-10-18
FR2359822B1
(en)
1983-09-23
US4254281A
(en)
1981-03-03
BE857097A
(en)
1978-01-25
FR2359822A1
(en)
1978-02-24
DE2733231C2
(en)
1988-04-07
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Legal Events
Date
Code
Title
Description
1979-11-14
PS
Patent sealed [section 19, patents act 1949]
1989-03-15
704A
Declaration that licence is not available as of right for an excepted use (par. 4a/1977)
1990-10-31
732
Registration of transactions, instruments or events in the register (sect. 32/1977)
1997-08-13
PE20
Patent expired after termination of 20 years
Effective date:
19970724
