JPS5446784A - Production of 3-hydroxy-4-pyrone analog - Google Patents
Production of 3-hydroxy-4-pyrone analogInfo
- Publication number
- JPS5446784A JPS5446784A JP11129577A JP11129577A JPS5446784A JP S5446784 A JPS5446784 A JP S5446784A JP 11129577 A JP11129577 A JP 11129577A JP 11129577 A JP11129577 A JP 11129577A JP S5446784 A JPS5446784 A JP S5446784A
- Authority
- JP
- Japan
- Prior art keywords
- hydroxy
- pyrone
- dihydro
- production
- pyrone analog
- 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
- Pyrane Compounds (AREA)
Abstract
PURPOSE: A 5,6-dihydro-5-pyrone derivative is subjected to halogenation and successive hydrolysis to form readily titled compound used as intensifier for flavor of food products and livestock feed.
CONSTITUTION: 5,6-Dihydro-5-pyrone derivatives are reacted with a halogen such as chlorine in a basic medium such as sodium hydrozide in methanol to form halides, which are hydrolyzed by mixing with water containing or not containing an acid or alkali catalyst to produced 3-hydroxy-4-pyrone derivatives. In an example, the yield of 2-methyl-3-hydroxy-4-pyrone (maltol) is 83%.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11129577A JPS5446784A (en) | 1977-09-16 | 1977-09-16 | Production of 3-hydroxy-4-pyrone analog |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11129577A JPS5446784A (en) | 1977-09-16 | 1977-09-16 | Production of 3-hydroxy-4-pyrone analog |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5446784A true JPS5446784A (en) | 1979-04-12 |
Family
ID=14557587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11129577A Pending JPS5446784A (en) | 1977-09-16 | 1977-09-16 | Production of 3-hydroxy-4-pyrone analog |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5446784A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100401783B1 (en) * | 1995-12-12 | 2004-01-28 | 주식회사 두산콘프로덕츠코리아 | Method for manufacturing maltol as flavor increasing agent |
-
1977
- 1977-09-16 JP JP11129577A patent/JPS5446784A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100401783B1 (en) * | 1995-12-12 | 2004-01-28 | 주식회사 두산콘프로덕츠코리아 | Method for manufacturing maltol as flavor increasing agent |
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