JPS54103811A - Production of 5-hydroxy-3-hexanone - Google Patents
Production of 5-hydroxy-3-hexanoneInfo
- Publication number
- JPS54103811A JPS54103811A JP1038978A JP1038978A JPS54103811A JP S54103811 A JPS54103811 A JP S54103811A JP 1038978 A JP1038978 A JP 1038978A JP 1038978 A JP1038978 A JP 1038978A JP S54103811 A JPS54103811 A JP S54103811A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxy
- water content
- hexanone
- acetaldehyde
- ethyl ketone
- 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
Abstract
PURPOSE: The water content in the reaction system is kept below a specific value while the reaction between acetaldehyde and methyl ethyl ketone is effected to product title compound useful for an intermediate of pigments in high yield.
CONSTITUTION: The aldol condensation between acetaldehyde and methyl ethyl ketone in the presence of a basic catalyst gives 5-hydroxy-3-hexanone, wherein the water content is kept lower than 5wt% in the reaction system. The reduction of the water content decreases the formation of by-products as 4-hydroxy-3-methyl-2- pentanone.
USE: An intermediate of red pigments with diazaphenalene structure.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1038978A JPS54103811A (en) | 1978-02-03 | 1978-02-03 | Production of 5-hydroxy-3-hexanone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1038978A JPS54103811A (en) | 1978-02-03 | 1978-02-03 | Production of 5-hydroxy-3-hexanone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54103811A true JPS54103811A (en) | 1979-08-15 |
Family
ID=11748757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1038978A Pending JPS54103811A (en) | 1978-02-03 | 1978-02-03 | Production of 5-hydroxy-3-hexanone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54103811A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588567A1 (en) * | 1985-10-11 | 1987-04-17 | Sanofi Sa | PROCESS FOR THE PREPARATION OF 3K CETONIC HYDROXY DERIVATIVES |
-
1978
- 1978-02-03 JP JP1038978A patent/JPS54103811A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2588567A1 (en) * | 1985-10-11 | 1987-04-17 | Sanofi Sa | PROCESS FOR THE PREPARATION OF 3K CETONIC HYDROXY DERIVATIVES |
EP0223765A1 (en) * | 1985-10-11 | 1987-05-27 | Sanofi S.A. | Process for the preparation of hydroxy-3 ketone derivatives |
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