GB1308423A - Oxidation process for the preparation of aldonic acids - Google Patents
Oxidation process for the preparation of aldonic acidsInfo
- Publication number
- GB1308423A GB1308423A GB1462871A GB1462871A GB1308423A GB 1308423 A GB1308423 A GB 1308423A GB 1462871 A GB1462871 A GB 1462871A GB 1462871 A GB1462871 A GB 1462871A GB 1308423 A GB1308423 A GB 1308423A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oxygen
- preparation
- diketal
- sorbose
- oxo
- 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
- C07H—SUGARS; DERIVATIVES THEREOF; NUCLEOSIDES; NUCLEOTIDES; NUCLEIC ACIDS
- C07H9/00—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical
- C07H9/02—Compounds containing a hetero ring sharing at least two hetero atoms with a saccharide radical the hetero ring containing only oxygen as ring hetero atoms
- C07H9/04—Cyclic acetals
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
1308423 Aldonic acids F HOFFMANN-LA ROCHE & CO AG 13 May 1971 [13 May 1970] 14628/71 Heading C2C In a process for the preparation of an aldonic acid by the oxidation of a sugar alcohol with oxygen or an oxygen-containing gas in the presence of a noble metal catalyst, the oxygen feed is controlled so that at the start of the reaction there is no excess of oxygen over that consumed, and the rate of consumption of the oxygen is maintained constant. The reaction takes plase in an aqueous alkaline medium preferably at a pH of 10 to 13, provided by alkali or alkaline earth metal hydroxide, and the catalyst may be platinum, palladium or gold. Sugar alcohols may be ribose, sorbose, fuctose, glucose, arabinose, mannose, erythiose, sorbitol, heptose, mannitol and the ketals thereof. Examples describe the preparation of a 2,3:4,6-diketal of 2-oxo-gulonic acid from a 2,3:4,5-diketal of sorbose in either a batch or continuous process, specifically 2,3:4,6 - diacetone-2-oxo-1-gulonic acid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3702070A | 1970-05-13 | 1970-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1308423A true GB1308423A (en) | 1973-02-21 |
Family
ID=21892003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1462871A Expired GB1308423A (en) | 1970-05-13 | 1971-05-13 | Oxidation process for the preparation of aldonic acids |
Country Status (10)
Country | Link |
---|---|
JP (1) | JPS5328431B1 (en) |
BE (1) | BE767051A (en) |
CA (1) | CA939338A (en) |
CH (1) | CH552549A (en) |
DE (1) | DE2123621C3 (en) |
DK (1) | DK135763B (en) |
FR (1) | FR2091490A5 (en) |
GB (1) | GB1308423A (en) |
NL (1) | NL160563C (en) |
SE (1) | SE368391B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3976626A4 (en) * | 2019-05-28 | 2023-07-05 | Dfi Usa, Llc | Methods for the production of calcium, magnesium, and zinc salts of sugar acids |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA74942B (en) * | 1973-03-26 | 1974-12-24 | Hoffmann La Roche | Plant growth regulants |
-
1971
- 1971-05-04 CH CH654971A patent/CH552549A/en not_active IP Right Cessation
- 1971-05-11 SE SE611171A patent/SE368391B/xx unknown
- 1971-05-12 CA CA112,766A patent/CA939338A/en not_active Expired
- 1971-05-12 BE BE767051A patent/BE767051A/en unknown
- 1971-05-12 DE DE19712123621 patent/DE2123621C3/en not_active Expired
- 1971-05-12 FR FR7117101A patent/FR2091490A5/fr not_active Expired
- 1971-05-12 JP JP3123471A patent/JPS5328431B1/ja active Pending
- 1971-05-12 DK DK228171A patent/DK135763B/en not_active IP Right Cessation
- 1971-05-13 NL NL7106590A patent/NL160563C/en not_active IP Right Cessation
- 1971-05-13 GB GB1462871A patent/GB1308423A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3976626A4 (en) * | 2019-05-28 | 2023-07-05 | Dfi Usa, Llc | Methods for the production of calcium, magnesium, and zinc salts of sugar acids |
Also Published As
Publication number | Publication date |
---|---|
DK135763C (en) | 1977-11-21 |
CH552549A (en) | 1974-08-15 |
FR2091490A5 (en) | 1972-01-14 |
DK135763B (en) | 1977-06-20 |
JPS5328431B1 (en) | 1978-08-15 |
DE2123621C3 (en) | 1978-06-01 |
BE767051A (en) | 1971-11-12 |
NL160563B (en) | 1979-06-15 |
NL160563C (en) | 1979-11-15 |
DE2123621B2 (en) | 1977-10-13 |
NL7106590A (en) | 1971-11-16 |
CA939338A (en) | 1974-01-01 |
DE2123621A1 (en) | 1971-11-25 |
SE368391B (en) | 1974-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |