Title:
PRODUCTION OF 2-KETO-L-GULONIC LOWER ALKYL ESTER
Document Type and Number:
Japanese Patent JP3184627
Kind Code:
B2
Abstract:
PURPOSE: To efficiently produce the subject compound as an intermediate, in order to obtain a metal L-ascorbate in high yield and in high purity from 2-keto- L-gulonic acid.
CONSTITUTION: The objective 2-keto-L-gulonic lower alkyl ester can be obtained by reaction of 2-keto-L-gulonic acid with a lower alcohol in the presence of an acid followed by or along with continuously introducing the lower alcohol into the system while distilling the resultant water formed, together with the lower alcohol, off the system.
Inventors:
Masaki Sugakawa
Yasumura
Kaoru Makino
Yasumura
Kaoru Makino
Application Number:
JP25945492A
Publication Date:
July 09, 2001
Filing Date:
September 29, 1992
Export Citation:
Assignee:
BASF Akchen Gezel Shaft
International Classes:
C07D307/62; C07H7/027; (IPC1-7): C07H7/027
Domestic Patent References:
| JP324068A |
Attorney, Agent or Firm:
Yusuke Hiraki (2 outside)