JPS568311A - Improvement of perfume tone of methyl ionone - Google Patents
Improvement of perfume tone of methyl iononeInfo
- Publication number
- JPS568311A JPS568311A JP8350679A JP8350679A JPS568311A JP S568311 A JPS568311 A JP S568311A JP 8350679 A JP8350679 A JP 8350679A JP 8350679 A JP8350679 A JP 8350679A JP S568311 A JPS568311 A JP S568311A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- methyl ionone
- ingredients
- ionone
- alcohols
- 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
- Fats And Perfumes (AREA)
Abstract
PURPOSE: To make ingredients (alcohols, etc.) causing an offensive smell to be readily removed by distillation, to form high boiling ingredients, and to obtain a methyl ionone having noble sweetness without the offensive smell, by treating the methyl ionone with a specific acid.
CONSTITUTION: A ϕ-methyl ionone is subjected to ring formation in the presence of an acid catalyst to give a reaction solution, which is properly washed with water and rectified. Prepared intermediate fractions of all steps containing methyl ionone, methyl ionone of a main fraction, or a solution containing them is treated with an inorganic acid (phosphoric acid, sulfuric acid, etc.), organic acid (carboxylic acid, sulfonic acid, etc.), or Lewise acid (boron trifluoride, zinc chloride, etc.) having pKa in water at 25°C not more than 3. An amount of the acid is preferably 1W 10pts.wt. based on 100pts.wt. of the methyl ionone. The treatment converts alcohols having boiling points close to those of the desired methyl ionone to low boiling ingredients and reduces unstable ketones.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8350679A JPS568311A (en) | 1979-07-03 | 1979-07-03 | Improvement of perfume tone of methyl ionone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8350679A JPS568311A (en) | 1979-07-03 | 1979-07-03 | Improvement of perfume tone of methyl ionone |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568311A true JPS568311A (en) | 1981-01-28 |
JPS629089B2 JPS629089B2 (en) | 1987-02-26 |
Family
ID=13804357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8350679A Granted JPS568311A (en) | 1979-07-03 | 1979-07-03 | Improvement of perfume tone of methyl ionone |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS568311A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004400A1 (en) * | 1984-04-03 | 1985-10-10 | T. Hasegawa Company, Ltd. | Use of ( 9e)-cis-gamma-irone in perfumery and novel process for preparing same |
-
1979
- 1979-07-03 JP JP8350679A patent/JPS568311A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1985004400A1 (en) * | 1984-04-03 | 1985-10-10 | T. Hasegawa Company, Ltd. | Use of ( 9e)-cis-gamma-irone in perfumery and novel process for preparing same |
EP0211954A1 (en) * | 1984-04-03 | 1987-03-04 | T. Hasegawa Company, Ltd. | Use of (+/-)-cis-gamma-irone in perfumery and novel process for preparing same |
EP0211954B1 (en) * | 1984-04-03 | 1991-07-17 | T. Hasegawa Company, Ltd. | Use of (+/-)-cis-gamma-irone in perfumery and novel process for preparing same |
Also Published As
Publication number | Publication date |
---|---|
JPS629089B2 (en) | 1987-02-26 |
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