MX9305044A - CHEMICAL PROCEDURE. - Google Patents
CHEMICAL PROCEDURE.Info
- Publication number
- MX9305044A MX9305044A MX9305044A MX9305044A MX9305044A MX 9305044 A MX9305044 A MX 9305044A MX 9305044 A MX9305044 A MX 9305044A MX 9305044 A MX9305044 A MX 9305044A MX 9305044 A MX9305044 A MX 9305044A
- Authority
- MX
- Mexico
- Prior art keywords
- chemical procedure
- aryloxyage
- ormaldehyde
- pyrimidone
- hexamethylphosphoramide
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
La presente invención se refiere a un método para la preparación de 2-hidroxiarilaldehido, el cual comprende hacer reaccionar un halogenuro de ariloximagesio, derivado de un fenol que tiene al menos una posición en orto linbre en relación al grupo e hidroxi fenólico con formaldehído, o un compuesto de liberación de ormaldehido bajo condiciones substancialmente anhidras en la presencia de un disolvente orgánico polar diferente a la hexametilfosforamida o de la 1,3-dimetil-3,4,5,6-(1HO-pirimidona.The present invention relates to a method for the preparation of 2-hydroxyaryl aldehyde, which comprises reacting an aryloxyage halide, derived from a phenol having at least one position in ortho linkage relative to the group and phenolic hydroxy with formaldehyde, or an ormaldehyde-releasing compound under substantially anhydrous conditions in the presence of a polar organic solvent other than hexamethylphosphoramide or 1,3-dimethyl-3,4,5,6- (1HO-pyrimidone.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB929217723A GB9217723D0 (en) | 1992-08-20 | 1992-08-20 | Chemical process |
GB939316315A GB9316315D0 (en) | 1992-08-20 | 1993-08-06 | Chemical process |
Publications (1)
Publication Number | Publication Date |
---|---|
MX9305044A true MX9305044A (en) | 1994-02-28 |
Family
ID=26301465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX9305044A MX9305044A (en) | 1992-08-20 | 1993-08-19 | CHEMICAL PROCEDURE. |
Country Status (1)
Country | Link |
---|---|
MX (1) | MX9305044A (en) |
-
1993
- 1993-08-19 MX MX9305044A patent/MX9305044A/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Grant or registration | ||
HC | Change of company name or juridical status |
Owner name: ROHM AND HAAS ASIA, INC. |
|
PD | Change of proprietorship |
Owner name: AVECIA LIMITED.* |
|
MM | Annulment or lapse due to non-payment of fees |