JPS57118547A - Preparation of glutamic acid and its derivative - Google Patents
Preparation of glutamic acid and its derivativeInfo
- Publication number
- JPS57118547A JPS57118547A JP320881A JP320881A JPS57118547A JP S57118547 A JPS57118547 A JP S57118547A JP 320881 A JP320881 A JP 320881A JP 320881 A JP320881 A JP 320881A JP S57118547 A JPS57118547 A JP S57118547A
- Authority
- JP
- Japan
- Prior art keywords
- hydrolyzing
- glutamic acid
- compound
- formula
- acid
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare glutamic acid from easily available raw materials, easily and economically, by reacting N-(substituted methylene)glycine ester with an acrylic acid ester, and hydrolyzing the reaction product.
CONSTITUTION: Glutamic acid is prepared by (1) reacting the compound of formulaI(R1 is H, CH3 or aryl; R2 is 1W4C alkyl) with an acrylic acid ester, (2) hydrolyzing the resultant glutamic acid derivative of formula II (R3 is 1W4C alkyl) in the presence of an acid to obtain the compound of formula III, and (3) hydrolyzing the compound in the presence of a base. As an alternative method, glutamic acid can be obtained by hydrolyzing the compound of formula II in the presence of a base, and hydrolyzing the resultant compound of formula IV in the presence of an acid. The hydrolysis is pref. carried out in all cases at 20W30°C for 3W5 hours.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP320881A JPS57118547A (en) | 1981-01-14 | 1981-01-14 | Preparation of glutamic acid and its derivative |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP320881A JPS57118547A (en) | 1981-01-14 | 1981-01-14 | Preparation of glutamic acid and its derivative |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57118547A true JPS57118547A (en) | 1982-07-23 |
Family
ID=11551015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP320881A Pending JPS57118547A (en) | 1981-01-14 | 1981-01-14 | Preparation of glutamic acid and its derivative |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57118547A (en) |
-
1981
- 1981-01-14 JP JP320881A patent/JPS57118547A/en active Pending
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