JPS5587749A - Preparation of lactamide - Google Patents
Preparation of lactamideInfo
- Publication number
- JPS5587749A JPS5587749A JP15927078A JP15927078A JPS5587749A JP S5587749 A JPS5587749 A JP S5587749A JP 15927078 A JP15927078 A JP 15927078A JP 15927078 A JP15927078 A JP 15927078A JP S5587749 A JPS5587749 A JP S5587749A
- Authority
- JP
- Japan
- Prior art keywords
- lactonitrile
- catalyst
- pref
- mno
- aqueous solution
- 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
Abstract
PURPOSE: To prepare the title compound useful as a synthetic raw material of lactic acid and other organic chemicals, without using multi-step reaction process and complicated separating process, by contacting an aqueous solution of lactonitrile with a specific catalyst at a specific temperature.
CONSTITUTION: An aqueous solution containing 1W50wt%, pref. 5W30wt% of lactonitrile is brought into contact with MnO2 as a catalyst at 30W200°C, pref. 50W130°C, for 2W10 hours to obtain lactamide. The lactonitrile can be easily prepared by reacting acetaldehyde with hydrocyanic acid. The MnO2 used as a catalyst is powder, granules, or tables obtained, e.g. by the heat decomposition of a manganese salt such as manganese nitrate or is the one on the market.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15927078A JPS5587749A (en) | 1978-12-26 | 1978-12-26 | Preparation of lactamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15927078A JPS5587749A (en) | 1978-12-26 | 1978-12-26 | Preparation of lactamide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5587749A true JPS5587749A (en) | 1980-07-02 |
JPS6147822B2 JPS6147822B2 (en) | 1986-10-21 |
Family
ID=15690095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15927078A Granted JPS5587749A (en) | 1978-12-26 | 1978-12-26 | Preparation of lactamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5587749A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104543922A (en) * | 2014-12-31 | 2015-04-29 | 南通双和食品有限公司 | Food acidulant and preparing method thereof |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7892993B2 (en) | 2003-06-19 | 2011-02-22 | Eastman Chemical Company | Water-dispersible and multicomponent fibers from sulfopolyesters |
US9598802B2 (en) | 2013-12-17 | 2017-03-21 | Eastman Chemical Company | Ultrafiltration process for producing a sulfopolyester concentrate |
-
1978
- 1978-12-26 JP JP15927078A patent/JPS5587749A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104543922A (en) * | 2014-12-31 | 2015-04-29 | 南通双和食品有限公司 | Food acidulant and preparing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6147822B2 (en) | 1986-10-21 |
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