JPS54119433A - Preparation of dihydrojasmone - Google Patents
Preparation of dihydrojasmoneInfo
- Publication number
- JPS54119433A JPS54119433A JP2606478A JP2606478A JPS54119433A JP S54119433 A JPS54119433 A JP S54119433A JP 2606478 A JP2606478 A JP 2606478A JP 2606478 A JP2606478 A JP 2606478A JP S54119433 A JPS54119433 A JP S54119433A
- Authority
- JP
- Japan
- Prior art keywords
- enone
- hydroxy
- formula
- acid
- sulfenyl
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the title compound useful as perfumes simply, by ring closure of a γ-hydroxy-α,β-enone, which is available from α-sulfenyl-α, β-enone, with an acid.
CONSTITUTION: A γ-hydroxy-α,β-enone, e.g. 5-hydroxy-3-undecene-2-one, of formula I: (R1 and R2 are H, 4W6C alkyl groups, at least one of them is H) is subjected to ring closure with a catalytic amount of an acid, e.g. sulfuric or phosphoric acid, to give the objective compound of formula II: (R is 4W6C alkyl group). The starting compound of formula I can be readily obtained by oxidizing an α-sulfenyl-α,β-enone to form a sulfoxide, which is subjected to [2,3] sigmatropic rearrangemnt.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2606478A JPS54119433A (en) | 1978-03-09 | 1978-03-09 | Preparation of dihydrojasmone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2606478A JPS54119433A (en) | 1978-03-09 | 1978-03-09 | Preparation of dihydrojasmone |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54119433A true JPS54119433A (en) | 1979-09-17 |
Family
ID=12183248
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2606478A Pending JPS54119433A (en) | 1978-03-09 | 1978-03-09 | Preparation of dihydrojasmone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54119433A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5947177U (en) * | 1983-07-18 | 1984-03-29 | 株式会社京浜精機製作所 | liquid valve |
-
1978
- 1978-03-09 JP JP2606478A patent/JPS54119433A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5947177U (en) * | 1983-07-18 | 1984-03-29 | 株式会社京浜精機製作所 | liquid valve |
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