JPS572881A - Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde - Google Patents
Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehydeInfo
- Publication number
- JPS572881A JPS572881A JP7503880A JP7503880A JPS572881A JP S572881 A JPS572881 A JP S572881A JP 7503880 A JP7503880 A JP 7503880A JP 7503880 A JP7503880 A JP 7503880A JP S572881 A JPS572881 A JP S572881A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- casing
- dialkoxy
- cathode
- anode
- 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
Abstract
PURPOSE: To obtain the desired product in a high yield by electrolytically oxidizing a soln. 3,5-dialkoxy-4-hydroxytoluene and a base in an org. solvent while passing the soln. through the narrow gap path between a cathode and an anode at a specified linear velocity.
CONSTITUTION: A casing 1 is provided with a blind flange 2, an inlet 3 feeding liq. starting material for reaction and an outlet 4 discharing a product. The casing is made of electrically conductive metallic material for generating hydrogen, and the inner surface is used as a cathode. A core-shaped anode 9 made of carbon material is held in the casing 1 with rings 10, 11 as spacers so as to make the section circular. As a result, a narrow gap 12 having a circular section is formed between the casing 1 as the cathode and the anode 9. A soln. of 3,5-dialkoxy-4-hydroxytoluene and a base in an org. solvent is fed to the gap 12 from the inlet 3 and passed through the gap at ≥10cm/sec linear velocity. During the passing the soln. is electrolyzed at 1W100A/dm2 current density, and the resulting 3,5-dialkoxy-4-hydroxybenzaldehyde is discharged from the outlet 4.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7503880A JPS572881A (en) | 1980-06-04 | 1980-06-04 | Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7503880A JPS572881A (en) | 1980-06-04 | 1980-06-04 | Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS572881A true JPS572881A (en) | 1982-01-08 |
| JPS6241318B2 JPS6241318B2 (en) | 1987-09-02 |
Family
ID=13564627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7503880A Granted JPS572881A (en) | 1980-06-04 | 1980-06-04 | Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS572881A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0711851A1 (en) * | 1994-11-15 | 1996-05-15 | Basf Aktiengesellschaft | Process for manufacturing p-hydroxybenzaldehyde |
| ES2116886A1 (en) * | 1995-06-05 | 1998-07-16 | Univ Alicante | Process for obtaining p-hydroxybenzaldehyde from p-hydroxymandelic acid on an industrial scale or one of their salts by electrochemical methods |
| US7063003B2 (en) | 2003-02-21 | 2006-06-20 | Sanden Corporation | Swash plate-type compressor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0635066Y2 (en) * | 1988-11-16 | 1994-09-14 | 大成建設株式会社 | Metal sleeve for building penetration |
-
1980
- 1980-06-04 JP JP7503880A patent/JPS572881A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0711851A1 (en) * | 1994-11-15 | 1996-05-15 | Basf Aktiengesellschaft | Process for manufacturing p-hydroxybenzaldehyde |
| ES2116886A1 (en) * | 1995-06-05 | 1998-07-16 | Univ Alicante | Process for obtaining p-hydroxybenzaldehyde from p-hydroxymandelic acid on an industrial scale or one of their salts by electrochemical methods |
| US7063003B2 (en) | 2003-02-21 | 2006-06-20 | Sanden Corporation | Swash plate-type compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6241318B2 (en) | 1987-09-02 |
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