JPS57206638A - Preparation of tetralin derivative - Google Patents
Preparation of tetralin derivativeInfo
- Publication number
- JPS57206638A JPS57206638A JP9267181A JP9267181A JPS57206638A JP S57206638 A JPS57206638 A JP S57206638A JP 9267181 A JP9267181 A JP 9267181A JP 9267181 A JP9267181 A JP 9267181A JP S57206638 A JPS57206638 A JP S57206638A
- Authority
- JP
- Japan
- Prior art keywords
- useful
- tetrahydronaphthalene
- perfumes
- formula
- preparation
- 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)
Abstract
NEW MATERIAL:An optically active or racemic tetralin derivative of formulaI (R is H or alkyl).
EXAMPLE: ( S )-3-( Carboxymethyl )-1,1,4,4,6-pentamethyl-1,2,3,4-tetrahydronaphthalene.
USE: Useful as an intermediate raw material for medicines, agricultural chemicals, perfumes, etc. For example, compounds obtained by the decarboxylation and acetylation are useful as perfumes, and among them 7-acetyl-1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene (trade name "Tonalid ") has a musky odor, and useful as a cosmetic perfume.
PROCESS: 4-(2-Methylpropenyl)-5,5-dimethyltetrahydro-2-furanone is reacted with an aromatic hydrocarbon in the presence of an acidic catalyst to give a novel compound of formula II, which is then treated with a Friedel-Crafts catalyst to afford the compound of formula I.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9267181A JPS57206638A (en) | 1981-06-15 | 1981-06-15 | Preparation of tetralin derivative |
DE8282105071T DE3266350D1 (en) | 1981-06-11 | 1982-06-09 | Tetrahydronaphthalene derivatives and their production |
EP82105071A EP0071006B1 (en) | 1981-06-11 | 1982-06-09 | Tetrahydronaphthalene derivatives and their production |
US06/902,063 US4767882A (en) | 1981-06-11 | 1986-08-26 | Tetrahydronaphthalene derivatives and their production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9267181A JPS57206638A (en) | 1981-06-15 | 1981-06-15 | Preparation of tetralin derivative |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57206638A true JPS57206638A (en) | 1982-12-18 |
JPS6236023B2 JPS6236023B2 (en) | 1987-08-05 |
Family
ID=14060937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9267181A Granted JPS57206638A (en) | 1981-06-11 | 1981-06-15 | Preparation of tetralin derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206638A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4831838A (en) * | 1985-07-31 | 1989-05-23 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
-
1981
- 1981-06-15 JP JP9267181A patent/JPS57206638A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4831838A (en) * | 1985-07-31 | 1989-05-23 | Toyota Jidosha Kabushiki Kaisha | Double air-fuel ratio sensor system carrying out learning control operation |
Also Published As
Publication number | Publication date |
---|---|
JPS6236023B2 (en) | 1987-08-05 |
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