ATE167674T1 - Verfahren zur herstellung von l-ascorbinsäure - Google Patents
Verfahren zur herstellung von l-ascorbinsäureInfo
- Publication number
- ATE167674T1 ATE167674T1 AT95117646T AT95117646T ATE167674T1 AT E167674 T1 ATE167674 T1 AT E167674T1 AT 95117646 T AT95117646 T AT 95117646T AT 95117646 T AT95117646 T AT 95117646T AT E167674 T1 ATE167674 T1 AT E167674T1
- Authority
- AT
- Austria
- Prior art keywords
- producing
- ascorbic acid
- acid
- ether
- keto
- Prior art date
Links
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 title abstract 4
- 239000002211 L-ascorbic acid Substances 0.000 title abstract 2
- 235000000069 L-ascorbic acid Nutrition 0.000 title abstract 2
- 229960005070 ascorbic acid Drugs 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 4
- VBUYCZFBVCCYFD-NUNKFHFFSA-N 2-dehydro-L-idonic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)C(=O)C(O)=O VBUYCZFBVCCYFD-NUNKFHFFSA-N 0.000 abstract 1
- VBUYCZFBVCCYFD-UHFFFAOYSA-N D-arabino-2-Hexulosonic acid Natural products OCC(O)C(O)C(O)C(=O)C(O)=O VBUYCZFBVCCYFD-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
- 239000004094 surface-active agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
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)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27731494 | 1994-11-11 | ||
| JP7228887A JPH08188578A (ja) | 1994-11-11 | 1995-09-06 | Ｌ−アスコルビン酸の製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE167674T1 true ATE167674T1 (de) | 1998-07-15 |
Family
ID=26528514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT95117646T ATE167674T1 (de) | 1994-11-11 | 1995-11-09 | Verfahren zur herstellung von l-ascorbinsäure |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5637734A (de) |
| EP (1) | EP0711764B1 (de) |
| JP (1) | JPH08188578A (de) |
| CN (1) | CN1055689C (de) |
| AT (1) | ATE167674T1 (de) |
| DE (1) | DE69503106T2 (de) |
| DK (1) | DK0711764T3 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19547073C1 (de) * | 1995-12-16 | 1996-11-14 | Merck Patent Gmbh | Verfahren zur Herstellung von Ascorbinsäure |
| US5846683A (en) * | 1996-04-08 | 1998-12-08 | Sharp Kabushiki Kaisha | Toner producing method using recycled extra-fine toner particles |
| MXPA03005640A (es) * | 2000-12-22 | 2003-10-06 | Eastman Chem Co | Proceso continuo para producir acido l-ascorbico. |
| US6476239B1 (en) * | 2002-02-12 | 2002-11-05 | Eastman Chemical Company | Process for the preparation of ascorbic acid |
| US6872314B2 (en) * | 2003-08-29 | 2005-03-29 | Eastman Chemical Company | Dewatering process |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB466548A (en) * | 1935-11-26 | 1937-05-31 | Tadeus Reichstein | Process for the manufacture of laevo-ascorbic acid (vitamin-c) |
| US2462251A (en) | 1945-05-16 | 1949-02-22 | Merck & Co Inc | Process for preparing ascorbic acids |
| JPS4815931B1 (de) | 1970-10-05 | 1973-05-18 | ||
| EP0086324B1 (de) * | 1982-02-12 | 1988-09-21 | F. HOFFMANN-LA ROCHE & CO. Aktiengesellschaft | Verfahren zur Herstellung von Ascorbinsäure |
| EP0132308B1 (de) | 1983-06-28 | 1991-03-06 | Genentech, Inc. | Biosynthetische 2,5-Diketogluconsäurereduktase, Verfahren, rekombinante Zellen und Expressionsvektoren für ihre Herstellung und ihre Verwendung zur Bereitung von 2-Keto-L-Gulonsäure |
| CN86105960A (zh) | 1985-08-09 | 1987-05-13 | 鲁布里佐尔公司 | 在基本无水条件下从2-酮-l-古洛糖酸制备l-抗坏血酸 |
| DE3819045C2 (de) * | 1987-06-08 | 1997-06-19 | Takeda Chemical Industries Ltd | Herstellung von L-Ascorbinsäure |
| JP2667201B2 (ja) | 1987-06-08 | 1997-10-27 | 武田薬品工業株式会社 | Ｌ−アスコルビン酸の製造法 |
| EP0324261A1 (de) * | 1988-01-06 | 1989-07-19 | Pfizer Inc. | Herstellung von Ascorbinsäure aus 2-Keto-L-gulonsäure unter im wesentlichen wasserfreien Bedingungen in Gegenwart eines sauren Katalysators und eines lipophilen grenzflächenaktiven Mittels mit einer niedrigen hydrophilen:lipophilen Gleichgewichtswert |
-
1995
- 1995-09-06 JP JP7228887A patent/JPH08188578A/ja active Pending
- 1995-11-03 US US08/553,027 patent/US5637734A/en not_active Expired - Fee Related
- 1995-11-09 AT AT95117646T patent/ATE167674T1/de not_active IP Right Cessation
- 1995-11-09 EP EP95117646A patent/EP0711764B1/de not_active Expired - Lifetime
- 1995-11-09 DK DK95117646T patent/DK0711764T3/da active
- 1995-11-09 DE DE69503106T patent/DE69503106T2/de not_active Expired - Lifetime
- 1995-11-10 CN CN95119217A patent/CN1055689C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE69503106T2 (de) | 1999-02-25 |
| EP0711764A1 (de) | 1996-05-15 |
| US5637734A (en) | 1997-06-10 |
| EP0711764B1 (de) | 1998-06-24 |
| CN1055689C (zh) | 2000-08-23 |
| DE69503106D1 (de) | 1998-07-30 |
| JPH08188578A (ja) | 1996-07-23 |
| DK0711764T3 (da) | 1998-11-16 |
| CN1129699A (zh) | 1996-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |