DE69503106T2 - Verfahren zur Herstellung von L-Ascorbinsäure - Google Patents

Verfahren zur Herstellung von L-Ascorbinsäure

Info

Publication number
DE69503106T2
DE69503106T2 DE69503106T DE69503106T DE69503106T2 DE 69503106 T2 DE69503106 T2 DE 69503106T2 DE 69503106 T DE69503106 T DE 69503106T DE 69503106 T DE69503106 T DE 69503106T DE 69503106 T2 DE69503106 T2 DE 69503106T2
Authority
DE
Germany
Prior art keywords
ascorbic acid
preparation
acid
ether
keto
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 - Lifetime
Application number
DE69503106T
Other languages
English (en)
Other versions
DE69503106D1 (de
Inventor
Haruomi Honda
Toru Yamano
Masayuki Yamashita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
Takeda Chemical Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takeda Chemical Industries Ltd filed Critical Takeda Chemical Industries Ltd
Publication of DE69503106D1 publication Critical patent/DE69503106D1/de
Application granted granted Critical
Publication of DE69503106T2 publication Critical patent/DE69503106T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic 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
    • C07D307/56Heterocyclic 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
    • C07D307/62Three 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)
DE69503106T 1994-11-11 1995-11-09 Verfahren zur Herstellung von L-Ascorbinsäure Expired - Lifetime DE69503106T2 (de)

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 (2)

Publication Number Publication Date
DE69503106D1 DE69503106D1 (de) 1998-07-30
DE69503106T2 true DE69503106T2 (de) 1999-02-25

Family

ID=26528514

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69503106T Expired - Lifetime DE69503106T2 (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)

* Cited by examiner, † Cited by third party
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
WO2002051826A1 (en) * 2000-12-22 2002-07-04 Eastman Chemical Company Continuous process for producing l-ascorbic acid
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)

* Cited by examiner, † Cited by third party
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
DE3378049D1 (en) * 1982-02-12 1988-10-27 Hoffmann La Roche Process for preparing ascorbic acid
IL89242A (en) 1983-06-28 1990-08-31 Genentech Inc Process for producing a recombinant microorganism capable of converting glucose into 2-keto-l-gulonic acid,the microorganism obtained by said process and its use in converting glucose into 2-keto-l-gulonic acid
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

Also Published As

Publication number Publication date
EP0711764A1 (de) 1996-05-15
ATE167674T1 (de) 1998-07-15
EP0711764B1 (de) 1998-06-24
CN1055689C (zh) 2000-08-23
US5637734A (en) 1997-06-10
DE69503106D1 (de) 1998-07-30
CN1129699A (zh) 1996-08-28
DK0711764T3 (da) 1998-11-16
JPH08188578A (ja) 1996-07-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: BASF AG, 67063 LUDWIGSHAFEN, DE

8330 Complete renunciation