ES2116886A1 - Process for obtaining p-hydroxybenzaldehyde from p-hydroxymandelic acid on an industrial scale or one of their salts by electrochemical methods - Google Patents
Process for obtaining p-hydroxybenzaldehyde from p-hydroxymandelic acid on an industrial scale or one of their salts by electrochemical methodsInfo
- Publication number
- ES2116886A1 ES2116886A1 ES09501118A ES9501118A ES2116886A1 ES 2116886 A1 ES2116886 A1 ES 2116886A1 ES 09501118 A ES09501118 A ES 09501118A ES 9501118 A ES9501118 A ES 9501118A ES 2116886 A1 ES2116886 A1 ES 2116886A1
- Authority
- ES
- Spain
- Prior art keywords
- hydroxybenzaldehyde
- salts
- obtaining
- industrial scale
- analyte
- 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
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Process for obtaining p-hydroxybenzaldehyde from p-hydroxymandelic acid on an industrial scale and one of their salts by electrochemical methods, which comprises subjecting an aqueous solution of sodium p-hydroxymandelate to electro-oxidation in an electrolytic cell with or without the separation of catalyte and analyte, the said solution forming the analyte and the catalyte being configured as any basic solution, the electrodes being flat, three-dimensional, forming a compact or fluidized bed and the current density being between 10 mA/cm2 and 2 A/cm2, while the temperature lies between 0 degree C and 90 degree C, the analyte being at any pH, preferably greater than 3, the aqueous solution obtained being derived as an acidified aqueous solution and the precipitated solid having a high degree of purity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09501118A ES2116886B1 (en) | 1995-06-05 | 1995-06-05 | PROCEDURE FOR THE INDUSTRIAL OBTAINING OF P-HYDROXYBENZALDEHYDE FROM P-HYDROXIMANDELIC ACID OR ONE OF ITS SALTS BY ELECTROCHEMICAL METHODS. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09501118A ES2116886B1 (en) | 1995-06-05 | 1995-06-05 | PROCEDURE FOR THE INDUSTRIAL OBTAINING OF P-HYDROXYBENZALDEHYDE FROM P-HYDROXIMANDELIC ACID OR ONE OF ITS SALTS BY ELECTROCHEMICAL METHODS. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2116886A1 true ES2116886A1 (en) | 1998-07-16 |
ES2116886B1 ES2116886B1 (en) | 1999-07-01 |
Family
ID=8290632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09501118A Expired - Fee Related ES2116886B1 (en) | 1995-06-05 | 1995-06-05 | PROCEDURE FOR THE INDUSTRIAL OBTAINING OF P-HYDROXYBENZALDEHYDE FROM P-HYDROXIMANDELIC ACID OR ONE OF ITS SALTS BY ELECTROCHEMICAL METHODS. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2116886B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101008086B (en) * | 2006-12-29 | 2011-08-03 | 华东理工大学 | Method for salicylic acid electrolysis for preparing salicyic aldehyde |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5227739A (en) * | 1975-08-26 | 1977-03-02 | Takasago Corp | Process for preparation of 3-substituted or non-substituted-4-hydroxyb enzaldehyde by electrolytic oxidation |
JPS572881A (en) * | 1980-06-04 | 1982-01-08 | Otsuka Chem Co Ltd | Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde |
US4402804A (en) * | 1982-05-17 | 1983-09-06 | Ppg Industries, Inc. | Electrolytic synthesis of aryl alcohols, aryl aldehydes, and aryl acids |
-
1995
- 1995-06-05 ES ES09501118A patent/ES2116886B1/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5227739A (en) * | 1975-08-26 | 1977-03-02 | Takasago Corp | Process for preparation of 3-substituted or non-substituted-4-hydroxyb enzaldehyde by electrolytic oxidation |
JPS572881A (en) * | 1980-06-04 | 1982-01-08 | Otsuka Chem Co Ltd | Manufacture of 3,5-dialkoxy-4-hydroxybenzaldehyde |
US4402804A (en) * | 1982-05-17 | 1983-09-06 | Ppg Industries, Inc. | Electrolytic synthesis of aryl alcohols, aryl aldehydes, and aryl acids |
Non-Patent Citations (2)
Title |
---|
BASE DE DATOS WPIL en QUESTEL, semana 7715, Londres: Derwent Publications Ltd., AN 77-26085Y & JP 52027739 A (TAKASAGO) * resumen * * |
BASE DE DATOS WPIL en QUESTEL, semana 8207, Londres: Derwent Publications Ltd., AN 82-12771E & JP 57002881 A (OTSUKA) * resumen * * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101008086B (en) * | 2006-12-29 | 2011-08-03 | 华东理工大学 | Method for salicylic acid electrolysis for preparing salicyic aldehyde |
Also Published As
Publication number | Publication date |
---|---|
ES2116886B1 (en) | 1999-07-01 |
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Legal Events
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EC2A | Search report published |
Date of ref document: 19980716 Kind code of ref document: A1 Effective date: 19980716 |
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Effective date: 20150925 |