GB527665A - Improvements in or relating to the manufacture of vinyl esters - Google Patents
Improvements in or relating to the manufacture of vinyl estersInfo
- Publication number
- GB527665A GB527665A GB1171239A GB1171239A GB527665A GB 527665 A GB527665 A GB 527665A GB 1171239 A GB1171239 A GB 1171239A GB 1171239 A GB1171239 A GB 1171239A GB 527665 A GB527665 A GB 527665A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crotonate
- acid
- ethylidine
- acetylene
- crotonic 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/04—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides onto unsaturated carbon-to-carbon bonds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
527,665. Vinyl crotonate. DISTILLERS CO., Ltd., and TUERCK, K. H. W. April 18, 1939, No. 11712. [Class 2 (iii)] Vinyl crotonate is made by passing acetylene into a mixture of crotonic acid and a mercury catalyst in the presence of ethylidene dicrotonate at temperatures not about about 50‹ C. Excess of inorganic acid is avoided and sulphuric acid may be employed in quantity not more than half that necessary to produce mercuric sulphate. In examples (1) mercuric oxide dissolved in a mixture of sulphuric and crotonic acids is added to a solution of crotonic acid in ethylidine di-crotonate, and acetylene is introduced at 25-30‹ C. ; the vinyl crotonate is distilled off at 35-50‹ C. under 7-10 mm. pressure and the residual crotonic acid and ethylidine di-crotonate is used again ; (2) mercuric acetate is added to a solution of crotonic acid in ethylidine di-crotonate containing a little sulphuric acid, and acetylene is introduced at room temperature. Specification .231,841, [Class 2 (iii )], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1171239A GB527665A (en) | 1939-04-18 | 1939-04-18 | Improvements in or relating to the manufacture of vinyl esters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1171239A GB527665A (en) | 1939-04-18 | 1939-04-18 | Improvements in or relating to the manufacture of vinyl esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB527665A true GB527665A (en) | 1940-10-14 |
Family
ID=9991290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1171239A Expired GB527665A (en) | 1939-04-18 | 1939-04-18 | Improvements in or relating to the manufacture of vinyl esters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB527665A (en) |
-
1939
- 1939-04-18 GB GB1171239A patent/GB527665A/en not_active Expired
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