GB1445069A - Process for the manufacture of esters - Google Patents
Process for the manufacture of estersInfo
- Publication number
- GB1445069A GB1445069A GB1342575A GB1342575A GB1445069A GB 1445069 A GB1445069 A GB 1445069A GB 1342575 A GB1342575 A GB 1342575A GB 1342575 A GB1342575 A GB 1342575A GB 1445069 A GB1445069 A GB 1445069A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetate
- group
- stands
- allyl
- esters
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
- C07C67/293—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/28—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group
- C07C67/29—Preparation of carboxylic acid esters by modifying the hydroxylic moiety of the ester, such modification not being an introduction of an ester group by introduction of oxygen-containing functional groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
1445069 Allyl esters F HOFFMANN-LA ROCHE & CO AG 2 April 1975 [3 April 1974] 13425/75 Heading C2C Esters of primary allyl alcohols where R<SP>1</SP> represents an acyl group R<SP>2</SP> an alkyl group or an acetalized carbonyl and R<SP>3</SP> an alkyl, alkenyl or cycloalkenyl group, and of derivatives obtained by hydrolysis of the acetal, are prepared by isomerization of tert allyl esters by means of a catalyst (PdX 2 Y) n wherein n stands for 1 or 2 and X represents a chlorine or bromine atom and when n stands for 1, Y represents the group (RCN) 2 in which R is alkyl or acyl group or when n stands for 2, Y represents an aliphatic or cycloaliphatic hydrocarbon group containing one olefinic bond. The acetalized carbonyl function may then be hydrolysed. Bis-(acetonitrile-palladium chloride, PdCl 2 (CH 3 CN) 2 and (PdCl 2 cyclohexene) 2 are preferred catalysts and the isomerization is carried out in the absence of a solvent, or in the presence of a non-complexing solvent. Examples describe the preparation of 4,4-dimethoxy-3- methyl - 2- -butenyl acetate from 1 - (dimethyloxymethyl) - 1 - methyl - allyl acetate, followed by hydrolysis to 3-formyl-2-butenyl acetate; geranyl acetate from linalyl acetate and phytyl acetate from isophytyl acetate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH468374A CH605592A5 (en) | 1974-04-03 | 1974-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1445069A true GB1445069A (en) | 1976-08-04 |
Family
ID=4280672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1342575A Expired GB1445069A (en) | 1974-04-03 | 1975-04-02 | Process for the manufacture of esters |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5855130B2 (en) |
AT (1) | AT340376B (en) |
BE (1) | BE827459A (en) |
CH (1) | CH605592A5 (en) |
DE (1) | DE2513198C3 (en) |
FR (1) | FR2266689B1 (en) |
GB (1) | GB1445069A (en) |
IT (1) | IT1031828B (en) |
NL (1) | NL178865C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4665221A (en) * | 1978-04-26 | 1987-05-12 | Basf Aktiengesellschaft | Preparation of terpenoid formates |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3368599D1 (en) * | 1982-12-06 | 1987-02-05 | Firmenich & Cie | Process for the preparation of alkylated cyclopentenones, and acetylenic esters useful as starting compounds in said preparation |
ATE162785T1 (en) * | 1993-10-13 | 1998-02-15 | Hoffmann La Roche | PRODUCTION OF AN INTERMEDIATE PRODUCT FOR VITAMIN A ACETATE |
DE19707959A1 (en) * | 1997-02-27 | 1998-09-03 | Dragoco Gerberding Co Ag | Process for the preparation of 1-functional allyl alcohol carboxylic acid esters |
-
1974
- 1974-04-03 CH CH468374A patent/CH605592A5/xx not_active IP Right Cessation
-
1975
- 1975-02-18 IT IT20381/75A patent/IT1031828B/en active
- 1975-02-26 NL NLAANVRAGE7502287,A patent/NL178865C/en not_active IP Right Cessation
- 1975-03-25 DE DE2513198A patent/DE2513198C3/en not_active Expired
- 1975-04-01 FR FR7510092A patent/FR2266689B1/fr not_active Expired
- 1975-04-01 JP JP50038655A patent/JPS5855130B2/en not_active Expired
- 1975-04-02 GB GB1342575A patent/GB1445069A/en not_active Expired
- 1975-04-02 BE BE155003A patent/BE827459A/en not_active IP Right Cessation
- 1975-04-02 AT AT249375A patent/AT340376B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4665221A (en) * | 1978-04-26 | 1987-05-12 | Basf Aktiengesellschaft | Preparation of terpenoid formates |
Also Published As
Publication number | Publication date |
---|---|
IT1031828B (en) | 1979-05-10 |
DE2513198C3 (en) | 1980-06-04 |
NL178865C (en) | 1986-06-02 |
DE2513198B2 (en) | 1979-09-13 |
NL178865B (en) | 1986-01-02 |
NL7502287A (en) | 1975-10-07 |
AT340376B (en) | 1977-12-12 |
FR2266689B1 (en) | 1978-08-18 |
FR2266689A1 (en) | 1975-10-31 |
JPS5855130B2 (en) | 1983-12-08 |
DE2513198A1 (en) | 1975-10-16 |
JPS50134995A (en) | 1975-10-25 |
ATA249375A (en) | 1977-04-15 |
BE827459A (en) | 1975-10-02 |
CH605592A5 (en) | 1978-09-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930402 |