GB601789A - Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid - Google Patents
Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acidInfo
- Publication number
- GB601789A GB601789A GB29198/45A GB2919845A GB601789A GB 601789 A GB601789 A GB 601789A GB 29198/45 A GB29198/45 A GB 29198/45A GB 2919845 A GB2919845 A GB 2919845A GB 601789 A GB601789 A GB 601789A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- keto
- gulonic
- derivatives
- ascorbic 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/62—Three oxygen atoms, e.g. ascorbic acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
Abstract
Ascorbic acid is obtained from derivatives of keto-gulonic acid by heating esters of the monomethylene ether of l-keto-2-gulonic acid, e.g. monoacetone l - keto - 2 - gulonic with lower alcohols, in water at temperatures above about 120 DEG C. and preferably above 140 DEG C. Suitable alcohols are methyl, ethyl and butyl which may be primary, secondary or tertiary, saturated or unsaturated, aliphatic or aromatic or mixed aliphatic-aromatic. In an example, monoacetone ketogulonic acid ethyl ester is heated in water to 135-140 DEG C. to produce ascorbic acid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL601789X | 1943-08-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB601789A true GB601789A (en) | 1948-05-12 |
Family
ID=19787804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29198/45A Expired GB601789A (en) | 1943-08-04 | 1945-11-02 | Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB601789A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6617463B2 (en) | 2000-05-10 | 2003-09-09 | Basf Aktiengesellschaft | Method for the production of L-ascorbic acid by lactonization of 2-keto-L-gulonic acid or s2-keto-L-gulonate esters |
-
1945
- 1945-11-02 GB GB29198/45A patent/GB601789A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6617463B2 (en) | 2000-05-10 | 2003-09-09 | Basf Aktiengesellschaft | Method for the production of L-ascorbic acid by lactonization of 2-keto-L-gulonic acid or s2-keto-L-gulonate esters |
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