DK239387A - METHOD FOR PREPARING 3-ALCOXY OR 3,3-DIALCOXYCARBOXYL ACID ESTERS - Google Patents
METHOD FOR PREPARING 3-ALCOXY OR 3,3-DIALCOXYCARBOXYL ACID ESTERSInfo
- Publication number
- DK239387A DK239387A DK239387A DK239387A DK239387A DK 239387 A DK239387 A DK 239387A DK 239387 A DK239387 A DK 239387A DK 239387 A DK239387 A DK 239387A DK 239387 A DK239387 A DK 239387A
- Authority
- DK
- Denmark
- Prior art keywords
- optionally substituted
- acid esters
- hydrogen
- dialcoxycarboxyl
- alcoxy
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Preparation of 3-alkoxy- or 3,3-dialkoxycarboxylic acid esters of the formula <IMAGE> in which R denotes hydrogen, optionally substituted alkyl, optionally substituted aryl or optionally substituted heteroaryl, R' and R" each denote hydrogen or OR"', with it not, however, being possible for R' and R" both to be hydrogen, and R"' denotes optionally substituted alkyl, by conducting keten gas, while stirring and controlling the temperature, into a suspension of an acid silicate catalyst, such as an acid clay mineral or a zeolite, in an acetal or orthoester of the formula <IMAGE> which is, where appropriate, dissolved in a suitable solvent, and, after the reaction has come to an end, removing the catalyst and working up the reaction mixture, thereby obtaining a high degree of conversion of the keten which has been conducted in, and a high yield.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK239387A DK158462C (en) | 1987-05-12 | 1987-05-12 | METHOD FOR PREPARING 3-ALCOXY OR 3,3-DIALCOXYCARBOXYL ACID ESTERS |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK239387 | 1987-05-12 | ||
DK239387A DK158462C (en) | 1987-05-12 | 1987-05-12 | METHOD FOR PREPARING 3-ALCOXY OR 3,3-DIALCOXYCARBOXYL ACID ESTERS |
Publications (4)
Publication Number | Publication Date |
---|---|
DK239387D0 DK239387D0 (en) | 1987-05-12 |
DK239387A true DK239387A (en) | 1988-11-13 |
DK158462B DK158462B (en) | 1990-05-21 |
DK158462C DK158462C (en) | 1990-10-08 |
Family
ID=8112065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK239387A DK158462C (en) | 1987-05-12 | 1987-05-12 | METHOD FOR PREPARING 3-ALCOXY OR 3,3-DIALCOXYCARBOXYL ACID ESTERS |
Country Status (1)
Country | Link |
---|---|
DK (1) | DK158462C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010121769A2 (en) * | 2009-04-24 | 2010-10-28 | Lonza Ltd | Process for the preparation of dialkyl 3-alkoxyglutarates |
CN111995519B (en) * | 2020-09-26 | 2022-08-26 | 安徽金禾实业股份有限公司 | Preparation method of 3-methoxy methyl acrylate |
-
1987
- 1987-05-12 DK DK239387A patent/DK158462C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK239387D0 (en) | 1987-05-12 |
DK158462B (en) | 1990-05-21 |
DK158462C (en) | 1990-10-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PBP | Patent lapsed |