IE46106L - Reduction of 2,5-diketogluconic acid - Google Patents
Reduction of 2,5-diketogluconic acidInfo
- Publication number
- IE46106L IE46106L IE772503A IE250377A IE46106L IE 46106 L IE46106 L IE 46106L IE 772503 A IE772503 A IE 772503A IE 250377 A IE250377 A IE 250377A IE 46106 L IE46106 L IE 46106L
- Authority
- IE
- Ireland
- Prior art keywords
- acid
- reduction
- diketogluconic
- ketogulonic
- diketogluconic acid
- Prior art date
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)
- Genetics & Genomics (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (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
By subjecting 2,5-diketogluconic acid, its alkyl esters and its salts to a reduction using an alkali metal borohydride, 2-ketogulonic acid is formed at the same time as smaller amounts of 2-ketogluconic acid. 2-Ketogulonic acid is easily converted to ascorbic acid or vitamin C by treatment with a strong acid.
[GB1561324A]
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 |
|---|---|
| IE46106L true IE46106L (en) | 1978-06-10 |
| IE46106B1 IE46106B1 (en) | 1983-02-23 |
Family
ID=27115134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2503/77A IE46106B1 (en) | 1976-12-10 | 1977-12-09 | Reduction of 2,5-diketogluconic acid |
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) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK154649C (en) * | 1978-12-01 | 1989-05-08 | Pfizer | METHOD FOR PREPARING 2-KETOGULONIC ACID |
-
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 SE SE7713979A patent/SE7713979L/en not_active Application Discontinuation
- 1977-12-08 AU AU31375/77A patent/AU498866B1/en not_active Expired
- 1977-12-08 CA CA292,668A patent/CA1110637A/en not_active Expired
- 1977-12-08 DE DE2754719A patent/DE2754719C3/en not_active Expired
- 1977-12-09 AT AT882177A patent/AT354470B/en not_active IP Right Cessation
- 1977-12-09 IE IE2503/77A patent/IE46106B1/en not_active IP Right Cessation
- 1977-12-09 FR FR7737189A patent/FR2373511A1/en active Granted
- 1977-12-09 TR TR19706A patent/TR19706A/en unknown
- 1977-12-09 BR BR7708220A patent/BR7708220A/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 PT PT67381A patent/PT67381B/en unknown
- 1977-12-09 HU HU77PI607A patent/HU178688B/en unknown
- 1977-12-09 DK DK549477A patent/DK157139C/en not_active IP Right Cessation
- 1977-12-09 IT IT30544/77A patent/IT1192212B/en active
- 1977-12-09 LU LU78666A patent/LU78666A1/en unknown
- 1977-12-09 NO NO774233A patent/NO774233L/en unknown
- 1977-12-09 NZ NZ185917A patent/NZ185917A/en unknown
- 1977-12-09 FI FI773722A patent/FI773722A/en not_active Application Discontinuation
- 1977-12-09 CH CH1514877A patent/CH629470A5/en not_active IP Right Cessation
- 1977-12-09 PL PL1977202800A patent/PL114409B1/en unknown
- 1977-12-12 DD DD77202532A patent/DD135204A5/en unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Patent lapsed |