KR100199355B1 - 저급 알킬 2-케토-l-굴로네이트의 제조방법 - Google Patents
저급 알킬 2-케토-l-굴로네이트의 제조방법 Download PDFInfo
- Publication number
- KR100199355B1 KR100199355B1 KR1019920017708A KR920017708A KR100199355B1 KR 100199355 B1 KR100199355 B1 KR 100199355B1 KR 1019920017708 A KR1019920017708 A KR 1019920017708A KR 920017708 A KR920017708 A KR 920017708A KR 100199355 B1 KR100199355 B1 KR 100199355B1
- Authority
- KR
- South Korea
- Prior art keywords
- methanol
- keto
- gulonate
- acid
- lower alcohol
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/66—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety
- C07C69/67—Esters of carboxylic acids having esterified carboxylic groups bound to acyclic carbon atoms and having any of the groups OH, O—metal, —CHO, keto, ether, acyloxy, groups, groups, or in the acid moiety of saturated acids
- C07C69/716—Esters of keto-carboxylic acids or aldehydo-carboxylic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Abstract
Description
Claims (11)
- 2-케토-L-굴론산을 저급 알콜과 산조재하에 반응시키며, 동시에 저급 알콜을 연속적으로 도입하면서 생성수를 저급 알콜과 함꼐 증류하는 것으로 구성되는 저급 알킬 2-케토-L-굴로네이트의 제조방법.
- 제1항에 있어서, 2-케토-L-굴론산이 그의 모노히드레이트인 방법.
- 제1항에 있어서, 저급 알콜이 1 내지 4개의 탄소원자를 갖는 알콜인 방법.
- 제3항에 있어서, 저급 알콜이 메탄올인 방법.
- 제4항에 있어서, 연속적으로 도입되는 저급 알콜이 메탄올의 증기인 방법.
- 제1항에 있어서, 증류된 저급 알콜이 분리되고 반응계 내로 도입되는 방법.
- 제1항에 있어서, 산이 무기산인 방법.
- 제7항에 있어서, 무기산이 황산인 방법.
- 제1항에 있어서, 산의 양이 2-케토-L-굴론산 1몰당 0.0054 내지 0.0162몰인 방법.
- 제1항에 있어서, 도입되는 저급 알콜의 양이 2-케토-L-굴론산 1몰당 40 내지 60몰인 방법.
- 제1항에 있어서, 제조된 저급 알킬 2-케토-L-굴로네이트가 메틸 2-케토-L-굴로네이트인 방법.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25358091 | 1991-10-01 | ||
| JP91-253580 | 1991-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930007888A KR930007888A (ko) | 1993-05-20 |
| KR100199355B1 true KR100199355B1 (ko) | 1999-06-15 |
Family
ID=17253355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920017708A Expired - Fee Related KR100199355B1 (ko) | 1991-10-01 | 1992-09-28 | 저급 알킬 2-케토-l-굴로네이트의 제조방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5227515A (ko) |
| EP (1) | EP0535927B1 (ko) |
| KR (1) | KR100199355B1 (ko) |
| CN (1) | CN1036457C (ko) |
| AT (1) | ATE139989T1 (ko) |
| DE (1) | DE69211936T2 (ko) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0671405A1 (de) * | 1994-01-18 | 1995-09-13 | F. Hoffmann-La Roche Ag | Herstellung von 2-Keto-L-gulonsäureestern |
| EP1000050A1 (de) * | 1997-07-16 | 2000-05-17 | Enco Engineering Chur Ag | Verfahren zur herstellung von ascorbat |
| DE19746956C2 (de) * | 1997-10-23 | 2000-05-11 | Siemens Ag | Medizinisches System aufweisend ein Röntgengerät und ein Therapiegerät mit einer Quelle fokussierter akustischer Wellen |
| DE19919203A1 (de) * | 1999-04-28 | 2000-11-02 | Basf Ag | Verfahren zur Herstellung von L-Ascorbinsäure |
| DE19938980A1 (de) | 1999-08-19 | 2001-02-22 | Basf Ag | Verfahren zur Herstellung von 2-Keto-L-gulonsäureestern |
| KR100440479B1 (ko) * | 2002-04-23 | 2004-07-14 | 주식회사 엘지화학 | 탄화수소의 열분해 공정 |
| AU2003293666A1 (en) | 2002-11-11 | 2004-06-03 | Basf Aktiengesellschaft | Method for the production of 2-keto-l-gulonic acid-c4-c10 alkyl esters |
| DE10359023A1 (de) * | 2003-12-15 | 2005-07-14 | Basf Ag | Verfahren zur Herstellung von 2-Keto-L-gulonsäureestern |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DD39696A (ko) * | ||||
| FR2518538A1 (fr) * | 1981-12-18 | 1983-06-24 | Rhone Poulenc Sante | Nouveaux b-cetoesters halogenes, leur preparation et leur emploi |
| EP0245315B1 (de) * | 1985-11-20 | 1990-04-11 | L. GIVAUDAN & CIE Société Anonyme | VERFAHREN ZUR HERSTELLUNG VON $g(a)-HYDROXYCARBONYLVERBINDUNGEN |
| DE3819045C2 (de) * | 1987-06-08 | 1997-06-19 | Takeda Chemical Industries Ltd | Herstellung von L-Ascorbinsäure |
| FR2648136B1 (fr) * | 1989-06-12 | 1994-06-17 | Rhone Poulenc Sante | Procede de preparation de l'acide ascorbique |
| CH678057A5 (de) * | 1989-06-26 | 1991-07-31 | Enco Eng Ag | Verfahren zur herstellung von natrium- oder kalium-l-ascorbat. |
| JPH0710806B2 (ja) * | 1989-07-28 | 1995-02-08 | 株式会社クラレ | α―ケトカルボン酸エステルの製造方法 |
-
1992
- 1992-09-26 CN CN 92111093 patent/CN1036457C/zh not_active Expired - Fee Related
- 1992-09-28 KR KR1019920017708A patent/KR100199355B1/ko not_active Expired - Fee Related
- 1992-09-30 AT AT92308902T patent/ATE139989T1/de not_active IP Right Cessation
- 1992-09-30 DE DE69211936T patent/DE69211936T2/de not_active Expired - Fee Related
- 1992-09-30 US US07/953,881 patent/US5227515A/en not_active Expired - Lifetime
- 1992-09-30 EP EP92308902A patent/EP0535927B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69211936D1 (de) | 1996-08-08 |
| EP0535927B1 (en) | 1996-07-03 |
| US5227515A (en) | 1993-07-13 |
| DE69211936T2 (de) | 1996-11-07 |
| KR930007888A (ko) | 1993-05-20 |
| CN1071422A (zh) | 1993-04-28 |
| EP0535927A1 (en) | 1993-04-07 |
| CN1036457C (zh) | 1997-11-19 |
| ATE139989T1 (de) | 1996-07-15 |
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| E701 | Decision to grant or registration of patent right | ||
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