JPS55167237A - Cis-trans isomerization of unsaturated compound - Google Patents
Cis-trans isomerization of unsaturated compoundInfo
- Publication number
- JPS55167237A JPS55167237A JP7493779A JP7493779A JPS55167237A JP S55167237 A JPS55167237 A JP S55167237A JP 7493779 A JP7493779 A JP 7493779A JP 7493779 A JP7493779 A JP 7493779A JP S55167237 A JPS55167237 A JP S55167237A
- Authority
- JP
- Japan
- Prior art keywords
- cis
- mercaptan
- light
- trans
- compound
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To carry out the cis-trans isomerization of an unsaturated compound which can take the cis- and the trans-form, economically, in high selectivity, by irradiating the compound with light in the presence of a mercaptan.
CONSTITUTION: The cis-trans isomerization of an unsaturated compound which can take the cis- and the trans-form, is carried out by irradiating the compound with light in the presence of a mercaptan. The mercaptan is, e.g. n-laurylmercaptan, n-decylmercaptan, etc. and it accelerates the photoisomerization. Preferably the amount of the mercaptan is 0.1W5mol per 1mol of the unsaturated alcohol. The light source is, e.g. a high-pressure mercury vapor lamp, a xenon lamp, etc.
EFFECT: As the reaction solution hardly absorbs light, the reaction proceeds with remarkably low rate of light irradiation and the equipment can be simplified.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7493779A JPS55167237A (en) | 1979-06-14 | 1979-06-14 | Cis-trans isomerization of unsaturated compound |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7493779A JPS55167237A (en) | 1979-06-14 | 1979-06-14 | Cis-trans isomerization of unsaturated compound |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55167237A true JPS55167237A (en) | 1980-12-26 |
JPS6258337B2 JPS6258337B2 (en) | 1987-12-05 |
Family
ID=13561755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7493779A Granted JPS55167237A (en) | 1979-06-14 | 1979-06-14 | Cis-trans isomerization of unsaturated compound |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55167237A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532421A (en) * | 1993-07-21 | 1996-07-02 | Shin-Etsu Chemical Co., Ltd. | Method for the isomerization of cis-alkenyl compounds |
JP2015040198A (en) * | 2013-08-23 | 2015-03-02 | 公立大学法人首都大学東京 | Isomerization reaction control method and isomer production method |
-
1979
- 1979-06-14 JP JP7493779A patent/JPS55167237A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5532421A (en) * | 1993-07-21 | 1996-07-02 | Shin-Etsu Chemical Co., Ltd. | Method for the isomerization of cis-alkenyl compounds |
JP2015040198A (en) * | 2013-08-23 | 2015-03-02 | 公立大学法人首都大学東京 | Isomerization reaction control method and isomer production method |
Also Published As
Publication number | Publication date |
---|---|
JPS6258337B2 (en) | 1987-12-05 |
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