JPS56103134A - Preparation of high-purity carboxylic acid chloride - Google Patents
Preparation of high-purity carboxylic acid chlorideInfo
- Publication number
- JPS56103134A JPS56103134A JP586280A JP586280A JPS56103134A JP S56103134 A JPS56103134 A JP S56103134A JP 586280 A JP586280 A JP 586280A JP 586280 A JP586280 A JP 586280A JP S56103134 A JPS56103134 A JP S56103134A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic acid
- acid chloride
- phosgene
- preparation
- catalyst
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To obtain a high-purity carboxylic acid chloride readily without discoloration and change with time, by adding a metal, e.g. Zn, to the reaction product of an organic carboxylic acid with phosgene in the presence of a lower aliphatic amide as a catalyst, and heat-treating the reaction mixture.
CONSTITUTION: An organic carboxylic acid, e.g. acetic or propionic acid, is reacted with phosgene, in the presence (absence) of a solvent, e.g. benzene, and a lower aliphatic acid amide, e.g. dimethylformamide as a catalyst, at 30W100°C, especially 50W90°C. To the resultant solution, or concentrated solution or crude product prepared by the elimination of all of part or the solvent used, are added one or two or more metals selected from Zn, Ti, V, Cr, Mn, Fe, Co and Ni, or a compound thereof, and the mixture is then heat-treated at 70W200°C, preferably 120W180°C, in an inert gas atmosphere and distilled to give the aimed compound of high quality.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP586280A JPS56103134A (en) | 1980-01-23 | 1980-01-23 | Preparation of high-purity carboxylic acid chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP586280A JPS56103134A (en) | 1980-01-23 | 1980-01-23 | Preparation of high-purity carboxylic acid chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56103134A true JPS56103134A (en) | 1981-08-18 |
JPS6313976B2 JPS6313976B2 (en) | 1988-03-29 |
Family
ID=11622765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP586280A Granted JPS56103134A (en) | 1980-01-23 | 1980-01-23 | Preparation of high-purity carboxylic acid chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56103134A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6429334B1 (en) | 2000-06-07 | 2002-08-06 | E. I. Du Pont De Nemours And Company | Production of acid anhydrides and acid chlorides |
US6730210B2 (en) | 2000-03-28 | 2004-05-04 | E. I. Du Pont De Nemours And Company | Low temperature alkali metal electrolysis |
CN114478300A (en) * | 2021-07-16 | 2022-05-13 | 丰益表面活性材料(连云港)有限公司 | Novel acyl chloride catalyst and preparation method and application thereof |
-
1980
- 1980-01-23 JP JP586280A patent/JPS56103134A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6730210B2 (en) | 2000-03-28 | 2004-05-04 | E. I. Du Pont De Nemours And Company | Low temperature alkali metal electrolysis |
US6429334B1 (en) | 2000-06-07 | 2002-08-06 | E. I. Du Pont De Nemours And Company | Production of acid anhydrides and acid chlorides |
CN114478300A (en) * | 2021-07-16 | 2022-05-13 | 丰益表面活性材料(连云港)有限公司 | Novel acyl chloride catalyst and preparation method and application thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6313976B2 (en) | 1988-03-29 |
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