JPS55136285A - Sesquiterpene derivative and its preparation - Google Patents
Sesquiterpene derivative and its preparationInfo
- Publication number
- JPS55136285A JPS55136285A JP4230979A JP4230979A JPS55136285A JP S55136285 A JPS55136285 A JP S55136285A JP 4230979 A JP4230979 A JP 4230979A JP 4230979 A JP4230979 A JP 4230979A JP S55136285 A JPS55136285 A JP S55136285A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- warburganal
- aldehyde
- compound
- derivative
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
NEW MATERIAL:A sesquiterpene derivative of formula I.
USE: An intermediate for the synthesis of warburganal having a powerful antifeedant action on armyworm.
PROCESS: 7-Oxoisodrimenin of formula II is treated with a dihydric alcohol, e.g. ethylene glycol, and an organic acid, e.g. p-toluenesulfonic acid, and refluxed in an aromatic hydrocarbon solvent, e.g. benzene, to give the compound of formula I in high yield. The compound of formula II can be obtained readily by treating isodrimenin of formula III with an oxidizing agent, preferably chromic acid, in high yield. The ketal derivative of formula I is converted into a ketone, diacetate, epoxy, triol, silyl, carbonate, alcohol, aldehyde, ketal, diol, and aldehyde in order, to afford warburganal of formula IV.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4230979A JPS55136285A (en) | 1979-04-06 | 1979-04-06 | Sesquiterpene derivative and its preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4230979A JPS55136285A (en) | 1979-04-06 | 1979-04-06 | Sesquiterpene derivative and its preparation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55136285A true JPS55136285A (en) | 1980-10-23 |
JPS5719118B2 JPS5719118B2 (en) | 1982-04-20 |
Family
ID=12632413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4230979A Granted JPS55136285A (en) | 1979-04-06 | 1979-04-06 | Sesquiterpene derivative and its preparation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55136285A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996025385A1 (en) * | 1995-02-15 | 1996-08-22 | Toa Gosei Co., Ltd. | Sesquiterpene compounds |
-
1979
- 1979-04-06 JP JP4230979A patent/JPS55136285A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996025385A1 (en) * | 1995-02-15 | 1996-08-22 | Toa Gosei Co., Ltd. | Sesquiterpene compounds |
US5840927A (en) * | 1995-02-15 | 1998-11-24 | Toa Gosei Co., Ltd. | Sesquiterpene compounds |
Also Published As
Publication number | Publication date |
---|---|
JPS5719118B2 (en) | 1982-04-20 |
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