JPS57156481A - Preparation of delta-alkyl-delta-lactone - Google Patents
Preparation of delta-alkyl-delta-lactoneInfo
- Publication number
- JPS57156481A JPS57156481A JP4044181A JP4044181A JPS57156481A JP S57156481 A JPS57156481 A JP S57156481A JP 4044181 A JP4044181 A JP 4044181A JP 4044181 A JP4044181 A JP 4044181A JP S57156481 A JPS57156481 A JP S57156481A
- Authority
- JP
- Japan
- Prior art keywords
- ester
- radical initiator
- allylacetic
- delta
- primary
- 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
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound, particularly useful for a food perfume, advantageously, by heating an allylacetic ester with a primary or secondary alcohol in the presence of a radical initiator, and lactonizing the resultant ester of a 6-hydroxy acid under acidic conditions.
CONSTITUTION: An allylacetic ester is heated with a primary or secondary alcohol in a molar amount of 10 times or more, preferably 20 times or more, that of the allylacetic ester in the presence of a radical initiator in a molar amount of 0.05W1.0 that of the radical initiator to give an ester of a 6-hydroxy acid, which is then lactonized under acidic conditions, preferably with sulfuric acid, in an aqueous solution in a concentration of preferably 70W95wt% to afford the titled compound easily from inexpensive industrially easily available raw materials in short steps. Preferably, a di-tert-butyl peroxide is used as the radical initiator, and the reaction temperature is 140W200°C in this case.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4044181A JPS6033432B2 (en) | 1981-03-23 | 1981-03-23 | Method for producing δ-alkyl-δ-lactones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4044181A JPS6033432B2 (en) | 1981-03-23 | 1981-03-23 | Method for producing δ-alkyl-δ-lactones |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57156481A true JPS57156481A (en) | 1982-09-27 |
JPS6033432B2 JPS6033432B2 (en) | 1985-08-02 |
Family
ID=12580725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4044181A Expired JPS6033432B2 (en) | 1981-03-23 | 1981-03-23 | Method for producing δ-alkyl-δ-lactones |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033432B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59122484A (en) * | 1982-12-28 | 1984-07-14 | Taiyo Koryo Kk | Novel delta-lactone compound and perfumery composition containing the same |
-
1981
- 1981-03-23 JP JP4044181A patent/JPS6033432B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59122484A (en) * | 1982-12-28 | 1984-07-14 | Taiyo Koryo Kk | Novel delta-lactone compound and perfumery composition containing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6033432B2 (en) | 1985-08-02 |
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