JPS5527135A - Novel unsaturated ketone compound and its preparation - Google Patents
Novel unsaturated ketone compound and its preparationInfo
- Publication number
- JPS5527135A JPS5527135A JP9920278A JP9920278A JPS5527135A JP S5527135 A JPS5527135 A JP S5527135A JP 9920278 A JP9920278 A JP 9920278A JP 9920278 A JP9920278 A JP 9920278A JP S5527135 A JPS5527135 A JP S5527135A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- methyl
- unsaturated ketone
- ketone compound
- 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)
- Fats And Perfumes (AREA)
Abstract
NEW MATERIAL:An unsaturated ketone compound of formula I: (R1 is methyl or ethyl group; R2 is H or methyl group; either of the 1- and the 2-positons has double bond in the dotted line).
EXAMPLE: 2-Methyl-3-isopropyl-2,5-heptadien-4-one.
USE: Useful as perfumes having a flowery flavor like green wood, usable for compounding various fragrances, and flavoring soaps due to the alkali resistance.
PROCESS: A diol of formula II is heated with dilute sulfuric acid, dehydrated and isomerized at about 60°C for about 5hr to give the compound of formula III among the compounds of formula I. The concentration of the sulfuric acid is 10W20%, preferably 15%.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9920278A JPS6029691B2 (en) | 1978-08-15 | 1978-08-15 | Novel unsaturated ketone compound and method for producing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9920278A JPS6029691B2 (en) | 1978-08-15 | 1978-08-15 | Novel unsaturated ketone compound and method for producing the same |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5527135A true JPS5527135A (en) | 1980-02-27 |
JPS6029691B2 JPS6029691B2 (en) | 1985-07-12 |
Family
ID=14241054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9920278A Expired JPS6029691B2 (en) | 1978-08-15 | 1978-08-15 | Novel unsaturated ketone compound and method for producing the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6029691B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4465863A (en) * | 1982-11-12 | 1984-08-14 | International Flavors & Fragrances Inc. | Branched C13 -alk-1-en-5-ones, use thereof in perfumery, process for preparing same and intermediates used in said process |
JP2002003434A (en) * | 2000-04-28 | 2002-01-09 | Givaudan Sa | 2-,5-,6-,7-,8-substituted oct-2-en-4-one |
-
1978
- 1978-08-15 JP JP9920278A patent/JPS6029691B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4465863A (en) * | 1982-11-12 | 1984-08-14 | International Flavors & Fragrances Inc. | Branched C13 -alk-1-en-5-ones, use thereof in perfumery, process for preparing same and intermediates used in said process |
JP2002003434A (en) * | 2000-04-28 | 2002-01-09 | Givaudan Sa | 2-,5-,6-,7-,8-substituted oct-2-en-4-one |
US6723313B2 (en) * | 2000-04-28 | 2004-04-20 | Givaudan Sa | 2-,5-,6-,7-,8-substituted oct-2-en-4-ones |
Also Published As
Publication number | Publication date |
---|---|
JPS6029691B2 (en) | 1985-07-12 |
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