JPS5466639A - Preparation of monoformylated phenol - Google Patents
Preparation of monoformylated phenolInfo
- Publication number
- JPS5466639A JPS5466639A JP13309177A JP13309177A JPS5466639A JP S5466639 A JPS5466639 A JP S5466639A JP 13309177 A JP13309177 A JP 13309177A JP 13309177 A JP13309177 A JP 13309177A JP S5466639 A JPS5466639 A JP S5466639A
- Authority
- JP
- Japan
- Prior art keywords
- phenol
- monoformylated
- formula
- alcohol
- give
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain a monoformylated plenol with a high selectivity, by reacting a phenol with glyoxilic acid in a mixed solvent of water and an alcohol in a specific proportion under basic conditions at about ordinary temperature, and by oxidizing the reaction product thus obtained.
CONSTITUTION: A phenol of formula I: (X is 1W3C alkyl or alkoxyl group), e.g. 2-methoxyphenol, etc. is reacted with glyoxylic acid in a mixed solvent of water (W) and a 1W4C alcohol (A) at a weight ratio of A to W of 0.05W2:1 under basic conditions at 0W50°C,preferably 10W40°C to give a compound of formula II. After recovering the reaction solvent alcohol and unreacted phenol from the reaction mixture if possible, the compound of formula II is oxidized to give a monoformylated phenol, e.g. 4-hydroxy-3-methoxybenzaldehyde, etc.
USE: An intermediate for perfumes and medicines.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13309177A JPS5466639A (en) | 1977-11-08 | 1977-11-08 | Preparation of monoformylated phenol |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13309177A JPS5466639A (en) | 1977-11-08 | 1977-11-08 | Preparation of monoformylated phenol |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5466639A true JPS5466639A (en) | 1979-05-29 |
Family
ID=15096630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13309177A Pending JPS5466639A (en) | 1977-11-08 | 1977-11-08 | Preparation of monoformylated phenol |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5466639A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103012091A (en) * | 2011-09-22 | 2013-04-03 | 中国石油天然气股份有限公司 | Method for preparing 3,4-dihydroxy benzaldehyde through copper oxide lattice oxygen oxidation |
-
1977
- 1977-11-08 JP JP13309177A patent/JPS5466639A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103012091A (en) * | 2011-09-22 | 2013-04-03 | 中国石油天然气股份有限公司 | Method for preparing 3,4-dihydroxy benzaldehyde through copper oxide lattice oxygen oxidation |
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