FR2373511A1 - 2,5-DICETOGLUCONIC ACID REDUCTION PROCESS - Google Patents
2,5-DICETOGLUCONIC ACID REDUCTION PROCESSInfo
- Publication number
- FR2373511A1 FR2373511A1 FR7737189A FR7737189A FR2373511A1 FR 2373511 A1 FR2373511 A1 FR 2373511A1 FR 7737189 A FR7737189 A FR 7737189A FR 7737189 A FR7737189 A FR 7737189A FR 2373511 A1 FR2373511 A1 FR 2373511A1
- Authority
- FR
- France
- Prior art keywords
- acid
- dicetogluconic
- reduction process
- acid reduction
- diketogluconic
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H7/00—Compounds containing non-saccharide radicals linked to saccharide radicals by a carbon-to-carbon bond
- C07H7/02—Acyclic radicals
- C07H7/027—Keto-aldonic acids
-
- 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
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
- Saccharide Compounds (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Seasonings (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
Procédé de réduction de l'acide 2,5-dicétogluconique. L'acide 2,5-dicétogluconique, ses esters alkyliques ou ses sels sont soumis à une réduction stéréosélective et régiosélective à l'aide d'un borohydrure de métal alcalin et il est formé de l'acide 2-cétogulonique en même temps que de plus petites quantités d'acide 2-cétogluconique. L'acide 2-cétogulonique est aisément transformé en acide ascorbique ou vitamine C.Process for reducing 2,5-diketogluconic acid. 2,5-Diketogluconic acid, its alkyl esters or its salts are subjected to stereoselective and regioselective reduction using an alkali metal borohydride and it is formed from 2-ketogulonic acid together with smaller amounts of 2-ketogluconic acid. 2-Ketogulonic acid is easily converted into ascorbic acid or vitamin C.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US74950976A | 1976-12-10 | 1976-12-10 | |
| US05/843,946 US4159990A (en) | 1976-12-10 | 1977-10-20 | Reduction of 2,5-diketogluconic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2373511A1 true FR2373511A1 (en) | 1978-07-07 |
| FR2373511B1 FR2373511B1 (en) | 1980-06-06 |
Family
ID=27115134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7737189A Granted FR2373511A1 (en) | 1976-12-10 | 1977-12-09 | 2,5-DICETOGLUCONIC ACID REDUCTION PROCESS |
Country Status (29)
| Country | Link |
|---|---|
| JP (1) | JPS5384916A (en) |
| AR (1) | AR218278A1 (en) |
| AT (1) | AT354470B (en) |
| AU (1) | AU498866B1 (en) |
| BR (1) | BR7708220A (en) |
| CA (1) | CA1110637A (en) |
| CH (1) | CH629470A5 (en) |
| CS (1) | CS208738B2 (en) |
| DD (1) | DD135204A5 (en) |
| DE (1) | DE2754719C3 (en) |
| DK (1) | DK157139C (en) |
| ES (1) | ES464780A1 (en) |
| FI (1) | FI773722A (en) |
| FR (1) | FR2373511A1 (en) |
| GB (1) | GB1561324A (en) |
| HU (1) | HU178688B (en) |
| IE (1) | IE46106B1 (en) |
| IT (1) | IT1192212B (en) |
| LU (1) | LU78666A1 (en) |
| MX (1) | MX4533E (en) |
| NL (1) | NL170288C (en) |
| NO (1) | NO774233L (en) |
| NZ (1) | NZ185917A (en) |
| PH (1) | PH13701A (en) |
| PL (1) | PL114409B1 (en) |
| PT (1) | PT67381B (en) |
| SE (1) | SE7713979L (en) |
| TR (1) | TR19706A (en) |
| YU (1) | YU285077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442855A1 (en) * | 1978-12-01 | 1980-06-27 | Pfizer | PROCESS FOR THE PRODUCTION OF 2-CETOGULONIC ACID, ITS ALKYL ESTERS AND ITS SALTS |
-
1977
- 1977-11-28 MX MX776579U patent/MX4533E/en unknown
- 1977-11-29 PH PH20494A patent/PH13701A/en unknown
- 1977-12-02 NL NLAANVRAGE7713365,A patent/NL170288C/en not_active IP Right Cessation
- 1977-12-03 YU YU02850/77A patent/YU285077A/en unknown
- 1977-12-06 ES ES464780A patent/ES464780A1/en not_active Expired
- 1977-12-07 AR AR270273A patent/AR218278A1/en active
- 1977-12-07 CS CS778181A patent/CS208738B2/en unknown
- 1977-12-08 AU AU31375/77A patent/AU498866B1/en not_active Expired
- 1977-12-08 DE DE2754719A patent/DE2754719C3/en not_active Expired
- 1977-12-08 SE SE7713979A patent/SE7713979L/en not_active Application Discontinuation
- 1977-12-08 CA CA292,668A patent/CA1110637A/en not_active Expired
- 1977-12-09 FR FR7737189A patent/FR2373511A1/en active Granted
- 1977-12-09 LU LU78666A patent/LU78666A1/en unknown
- 1977-12-09 HU HU77PI607A patent/HU178688B/en unknown
- 1977-12-09 FI FI773722A patent/FI773722A/en not_active Application Discontinuation
- 1977-12-09 TR TR19706A patent/TR19706A/en unknown
- 1977-12-09 CH CH1514877A patent/CH629470A5/en not_active IP Right Cessation
- 1977-12-09 IT IT30544/77A patent/IT1192212B/en active
- 1977-12-09 AT AT882177A patent/AT354470B/en not_active IP Right Cessation
- 1977-12-09 NZ NZ185917A patent/NZ185917A/en unknown
- 1977-12-09 JP JP14803377A patent/JPS5384916A/en active Granted
- 1977-12-09 GB GB51415/77A patent/GB1561324A/en not_active Expired
- 1977-12-09 IE IE2503/77A patent/IE46106B1/en not_active IP Right Cessation
- 1977-12-09 DK DK549477A patent/DK157139C/en not_active IP Right Cessation
- 1977-12-09 PL PL1977202800A patent/PL114409B1/en unknown
- 1977-12-09 NO NO774233A patent/NO774233L/en unknown
- 1977-12-09 PT PT67381A patent/PT67381B/en unknown
- 1977-12-09 BR BR7708220A patent/BR7708220A/en unknown
- 1977-12-12 DD DD77202532A patent/DD135204A5/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2442855A1 (en) * | 1978-12-01 | 1980-06-27 | Pfizer | PROCESS FOR THE PRODUCTION OF 2-CETOGULONIC ACID, ITS ALKYL ESTERS AND ITS SALTS |
Also Published As
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |