JPS5782337A - Preparation of pivaloyl chloride and aromatic carboxylic acid chloride - Google Patents
Preparation of pivaloyl chloride and aromatic carboxylic acid chlorideInfo
- Publication number
- JPS5782337A JPS5782337A JP15857780A JP15857780A JPS5782337A JP S5782337 A JPS5782337 A JP S5782337A JP 15857780 A JP15857780 A JP 15857780A JP 15857780 A JP15857780 A JP 15857780A JP S5782337 A JPS5782337 A JP S5782337A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic acid
- aromatic carboxylic
- acid chloride
- chloride
- preparation
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled two compounds in high yields, by the two steps of reacting an aromatic carboxylic acid chloride as a chlorine source with pivalic acid, distilling off all or part of the reaction product, and reacting the residue with a trichlorobenzene in the presence of a catalyst.
CONSTITUTION: An aromatic carboxylic acid chloride of the formula (R is H, Cl or COCl) is reacted with pivalic acid, and the pivaloyl chloride is then partly or wholly distilled from the resultant reaction product. The resultant residue is then reacted with a trichloromethylbenzene compound corresponding to the initially used aromatic carboxylic acid chloride in the presence of a Friedel- Crafts catalyst, e.g. FeCl3, to give the aimed aromatic carboxylic acid chloride.
EFFECT: High-purity products are sufficiently obtained from the inexpensive chlorine source.
USE: An intermediate raw material for medicines, agricultural chemicals, dyes and other industrial chemicals.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15857780A JPS5835977B2 (en) | 1980-11-11 | 1980-11-11 | Production method of pivalic acid chloride and aromatic carboxylic acid chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15857780A JPS5835977B2 (en) | 1980-11-11 | 1980-11-11 | Production method of pivalic acid chloride and aromatic carboxylic acid chloride |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5782337A true JPS5782337A (en) | 1982-05-22 |
JPS5835977B2 JPS5835977B2 (en) | 1983-08-05 |
Family
ID=15674722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15857780A Expired JPS5835977B2 (en) | 1980-11-11 | 1980-11-11 | Production method of pivalic acid chloride and aromatic carboxylic acid chloride |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5835977B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61280445A (en) * | 1985-06-05 | 1986-12-11 | Ihara Nikkei Kagaku Kogyo Kk | Production of beta-chloropivalic acid chloride |
FR2772755A1 (en) * | 1997-12-23 | 1999-06-25 | Atochem Elf Sa | CONTINUOUS PROCESS FOR THE PREPARATION OF PIVALOYL CHLORIDE AND AROYL CHLORIDE |
WO2001083420A3 (en) * | 2000-05-02 | 2002-06-13 | Occidental Chem Co | Method of making substituted dihalo aromatic acid chlorides |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0538866Y2 (en) * | 1986-12-24 | 1993-09-30 |
-
1980
- 1980-11-11 JP JP15857780A patent/JPS5835977B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61280445A (en) * | 1985-06-05 | 1986-12-11 | Ihara Nikkei Kagaku Kogyo Kk | Production of beta-chloropivalic acid chloride |
FR2772755A1 (en) * | 1997-12-23 | 1999-06-25 | Atochem Elf Sa | CONTINUOUS PROCESS FOR THE PREPARATION OF PIVALOYL CHLORIDE AND AROYL CHLORIDE |
EP0926125A1 (en) * | 1997-12-23 | 1999-06-30 | Elf Atochem S.A. | Continuous process for the preparation of pyvaloyl chloride and aroyl chloride |
WO2001083420A3 (en) * | 2000-05-02 | 2002-06-13 | Occidental Chem Co | Method of making substituted dihalo aromatic acid chlorides |
Also Published As
Publication number | Publication date |
---|---|
JPS5835977B2 (en) | 1983-08-05 |
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