SE7907807L - Forbettrar forfarande for framstellning av askorbinsyra - Google Patents
Forbettrar forfarande for framstellning av askorbinsyraInfo
- Publication number
- SE7907807L SE7907807L SE7907807A SE7907807A SE7907807L SE 7907807 L SE7907807 L SE 7907807L SE 7907807 A SE7907807 A SE 7907807A SE 7907807 A SE7907807 A SE 7907807A SE 7907807 L SE7907807 L SE 7907807L
- Authority
- SE
- Sweden
- Prior art keywords
- ascorbic acid
- improves method
- producing ascorbic
- producing
- improves
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/945,034 US4180511A (en) | 1978-09-22 | 1978-09-22 | Ascorbic acid process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE7907807L true SE7907807L (sv) | 1980-03-23 |
Family
ID=25482512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7907807A SE7907807L (sv) | 1978-09-22 | 1979-09-20 | Forbettrar forfarande for framstellning av askorbinsyra |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US4180511A (sv) |
| JP (1) | JPS5545689A (sv) |
| AR (1) | AR222347A1 (sv) |
| AU (1) | AU514670B2 (sv) |
| BE (1) | BE878930A (sv) |
| DE (1) | DE2937517A1 (sv) |
| DK (1) | DK303779A (sv) |
| ES (1) | ES484339A1 (sv) |
| FR (1) | FR2436784A1 (sv) |
| GB (1) | GB2030145A (sv) |
| IT (1) | IT1123732B (sv) |
| LU (1) | LU81707A1 (sv) |
| NL (1) | NL7907041A (sv) |
| PL (1) | PL117376B1 (sv) |
| SE (1) | SE7907807L (sv) |
| ZA (1) | ZA795027B (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276219A (en) * | 1979-07-20 | 1981-06-30 | Pfizer Inc. | 5-Keto-L-ascorbic acid-5,5-dimethyl ketal, derivatives thereof and its use as an antioxidant and intermediate |
| CH678057A5 (de) * | 1989-06-26 | 1991-07-31 | Enco Eng Ag | Verfahren zur herstellung von natrium- oder kalium-l-ascorbat. |
| DE19938980A1 (de) * | 1999-08-19 | 2001-02-22 | Basf Ag | Verfahren zur Herstellung von 2-Keto-L-gulonsäureestern |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3721663A (en) * | 1970-03-02 | 1973-03-20 | Merck & Co Inc | Novel method for preparing ascorbic acid compounds and novel intermediates for preparing same |
-
1978
- 1978-09-22 US US05/945,034 patent/US4180511A/en not_active Expired - Lifetime
-
1979
- 1979-07-19 DK DK303779A patent/DK303779A/da unknown
- 1979-09-12 GB GB7931686A patent/GB2030145A/en not_active Withdrawn
- 1979-09-17 DE DE19792937517 patent/DE2937517A1/de not_active Ceased
- 1979-09-17 PL PL1979218371A patent/PL117376B1/pl unknown
- 1979-09-20 IT IT25884/79A patent/IT1123732B/it active
- 1979-09-20 AU AU51033/79A patent/AU514670B2/en not_active Ceased
- 1979-09-20 SE SE7907807A patent/SE7907807L/sv not_active Application Discontinuation
- 1979-09-20 ES ES484339A patent/ES484339A1/es not_active Expired
- 1979-09-20 LU LU81707A patent/LU81707A1/fr unknown
- 1979-09-21 ZA ZA00795027A patent/ZA795027B/xx unknown
- 1979-09-21 AR AR278161A patent/AR222347A1/es active
- 1979-09-21 BE BE0/197262A patent/BE878930A/fr unknown
- 1979-09-21 NL NL7907041A patent/NL7907041A/nl not_active Application Discontinuation
- 1979-09-21 JP JP12190179A patent/JPS5545689A/ja active Pending
- 1979-09-21 FR FR7923556A patent/FR2436784A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL7907041A (nl) | 1980-03-25 |
| JPS5545689A (en) | 1980-03-31 |
| IT1123732B (it) | 1986-04-30 |
| AU5103379A (en) | 1980-03-27 |
| BE878930A (fr) | 1980-03-21 |
| PL218371A1 (sv) | 1980-05-05 |
| DE2937517A1 (de) | 1980-03-27 |
| GB2030145A (en) | 1980-04-02 |
| ES484339A1 (es) | 1980-05-16 |
| AR222347A1 (es) | 1981-05-15 |
| ZA795027B (en) | 1980-09-24 |
| US4180511A (en) | 1979-12-25 |
| LU81707A1 (fr) | 1980-04-21 |
| AU514670B2 (en) | 1981-02-19 |
| IT7925884A0 (it) | 1979-09-20 |
| FR2436784A1 (fr) | 1980-04-18 |
| DK303779A (da) | 1980-03-23 |
| PL117376B1 (en) | 1981-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAV | Patent application has lapsed |
Ref document number: 7907807-7 |