JPS643151A - Production of 4-hydroxybiphenyl-3-carboxylic acid - Google Patents
Production of 4-hydroxybiphenyl-3-carboxylic acidInfo
- Publication number
- JPS643151A JPS643151A JP15780787A JP15780787A JPS643151A JP S643151 A JPS643151 A JP S643151A JP 15780787 A JP15780787 A JP 15780787A JP 15780787 A JP15780787 A JP 15780787A JP S643151 A JPS643151 A JP S643151A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxybiphenyl
- carbon dioxide
- dioxide gas
- carboxylic acid
- pressure
- 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 easily obtain the titled compound useful as a color-developer for pressure-sensitive or heat-sensitive recording paper in one pot and in high yield and purity, by dehydrating a reaction mixture of 4-hydroxybiphenyl and potassium hydroxide and reacting with carbon dioxide gas in a hydrophobic solvent at a specific temperature.
CONSTITUTION: A reaction mixture produced by the reacting of 4-hydro xybiphenyl with KOH is dehydrated and then reacted with carbon dioxide gas in a hydrophobic solvent (e.g. triisopropylbenzene, naphthalene or biphenyl) at 150W250°C, preferably 160W220°C to obtain the objective 4-hydroxybiphenyl-3- carboxylic acid. The reaction pressure of carbon dioxide gas is preferably normal pressure W 2kg/cm2.G, more preferably normal pressure.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157807A JPH0662499B2 (en) | 1987-06-26 | 1987-06-26 | Process for producing 4-hydroxybiphenyl-3-carboxylic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62157807A JPH0662499B2 (en) | 1987-06-26 | 1987-06-26 | Process for producing 4-hydroxybiphenyl-3-carboxylic acid |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPH013151A JPH013151A (en) | 1989-01-06 |
| JPS643151A true JPS643151A (en) | 1989-01-06 |
| JPH0662499B2 JPH0662499B2 (en) | 1994-08-17 |
Family
ID=15657717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62157807A Expired - Lifetime JPH0662499B2 (en) | 1987-06-26 | 1987-06-26 | Process for producing 4-hydroxybiphenyl-3-carboxylic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0662499B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245558A (en) * | 1985-08-23 | 1987-02-27 | Nippon Steel Corp | Production of 4-hydroxybiphenyl-3-carboxylic acid |
-
1987
- 1987-06-26 JP JP62157807A patent/JPH0662499B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245558A (en) * | 1985-08-23 | 1987-02-27 | Nippon Steel Corp | Production of 4-hydroxybiphenyl-3-carboxylic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0662499B2 (en) | 1994-08-17 |
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