ZA934375B - Process for the preparation of vinyl haloacetates - Google Patents
Process for the preparation of vinyl haloacetatesInfo
- Publication number
- ZA934375B ZA934375B ZA934375A ZA934375A ZA934375B ZA 934375 B ZA934375 B ZA 934375B ZA 934375 A ZA934375 A ZA 934375A ZA 934375 A ZA934375 A ZA 934375A ZA 934375 B ZA934375 B ZA 934375B
- Authority
- ZA
- South Africa
- Prior art keywords
- vinyl ester
- haloacetic acid
- haloacetic
- general formula
- catalyst
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/10—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with ester groups or with a carbon-halogen bond
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)
Abstract
A process for the preparation of vinyl esters of haloacetic acids of the general formula (I> HalnHmC-COO-CH=CH2 (I> in which Hal is equal to Cl or Br, n is equal to 1, 2 or 3, m is 3-n, is given, which is characterised in that a haloacetic acid of the general formula (II> HalnHmC-COOH (II> in which Hal, n and m have the abovementioned meaning, is allowed to react with a vinyl ester of the general formula (III> R-CH2-COO-CH=CH2 (III> in which R denotes hydrogen or an alkyl radical having 1 to 6 C atoms, in liquid phase in the presence of a palladium(II) compound as a catalyst, a copper(II) compound as a co-catalyst and an alkali metal compound as a promoter at 20 DEG C to 100 DEG C over a period of 0.1 to 10 hours, then the evaporable fractions of the catalyst components are removed from the reaction mixture in a flash evaporation and the catalyst components are subsequently oxidatively treated, the evaporated fractions are condensed and the condensate is separated by means of distillation into unreacted vinyl ester, crude vinyl ester of haloacetic acid and unreacted haloacetic acid, the crude vinyl ester of haloacetic acid is extracted with water at 5 DEG to 20 DEG C, as a result of which the carboxylic acid formed from the vinyl ester employed is transferred to the aqueous phase, and the vinyl ester of haloacetic acid removed as the organic phase is optionally treated with a drying agent.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4219997A DE4219997A1 (en) | 1992-06-19 | 1992-06-19 | Process for the preparation of vinyl haloacetic acid esters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA934375B true ZA934375B (en) | 1994-01-13 |
Family
ID=6461317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA934375A ZA934375B (en) | 1992-06-19 | 1993-06-18 | Process for the preparation of vinyl haloacetates |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0574725B1 (en) |
| JP (1) | JPH06239796A (en) |
| AT (1) | ATE147063T1 (en) |
| DE (2) | DE4219997A1 (en) |
| ZA (1) | ZA934375B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100401284B1 (en) * | 1997-06-03 | 2004-01-31 | 주식회사유한양행 | Method for preparing 1-bromoethyl acetate |
| KR100403143B1 (en) * | 2000-12-14 | 2003-10-30 | 씨제이 주식회사 | A manufacturing method of 1-bromoethyl acetate |
| DE102009002727A1 (en) * | 2009-04-29 | 2010-11-04 | Wacker Chemie Ag | Palladium (II) -containing catalysts, their preparation and use |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3188319A (en) * | 1965-06-08 | Production of vinyl estess | ||
| GB1486443A (en) * | 1975-05-19 | 1977-09-21 | Ici Ltd | Production of vinyl esters of organic carboxylic acids |
| DE2823660A1 (en) * | 1977-10-13 | 1979-04-26 | Shin Etsu Vinyl Acetate Co | PROCESS FOR PRODUCING AN ALKENYLESTER FROM CARBONIC ACIDS |
| JPH02172946A (en) * | 1988-12-26 | 1990-07-04 | Shinetsu Sakusan Vinyl Kk | Production of alkenyl carboxylate |
-
1992
- 1992-06-19 DE DE4219997A patent/DE4219997A1/en not_active Withdrawn
-
1993
- 1993-05-21 DE DE59304946T patent/DE59304946D1/en not_active Expired - Fee Related
- 1993-05-21 AT AT93108230T patent/ATE147063T1/en not_active IP Right Cessation
- 1993-05-21 EP EP93108230A patent/EP0574725B1/en not_active Expired - Lifetime
- 1993-06-17 JP JP5146441A patent/JPH06239796A/en not_active Withdrawn
- 1993-06-18 ZA ZA934375A patent/ZA934375B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE59304946D1 (en) | 1997-02-13 |
| ATE147063T1 (en) | 1997-01-15 |
| EP0574725B1 (en) | 1997-01-02 |
| EP0574725A1 (en) | 1993-12-22 |
| JPH06239796A (en) | 1994-08-30 |
| DE4219997A1 (en) | 1993-12-23 |
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