GB2034315A - Production of L-ascorbic Acid - Google Patents

Production of L-ascorbic Acid Download PDF

Info

Publication number
GB2034315A
GB2034315A GB7936848A GB7936848A GB2034315A GB 2034315 A GB2034315 A GB 2034315A GB 7936848 A GB7936848 A GB 7936848A GB 7936848 A GB7936848 A GB 7936848A GB 2034315 A GB2034315 A GB 2034315A
Authority
GB
United Kingdom
Prior art keywords
acid
ascorbic acid
enolisation
process according
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.)
Withdrawn
Application number
GB7936848A
Other languages
English (en)
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.)
Jenapharm GmbH and Co KG
Original Assignee
VEB Jenapharm
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 VEB Jenapharm filed Critical VEB Jenapharm
Publication of GB2034315A publication Critical patent/GB2034315A/en
Withdrawn legal-status Critical Current

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
GB7936848A 1978-10-31 1979-10-24 Production of L-ascorbic Acid Withdrawn GB2034315A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20877378A DD141832A1 (de) 1978-10-31 1978-10-31 Verfahren und vorrichtung zur herstellung von l-ascorbinsaeure

Publications (1)

Publication Number Publication Date
GB2034315A true GB2034315A (en) 1980-06-04

Family

ID=5515085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7936848A Withdrawn GB2034315A (en) 1978-10-31 1979-10-24 Production of L-ascorbic Acid

Country Status (6)

Country Link
DD (1) DD141832A1 (de)
DE (1) DE2939052A1 (de)
FR (1) FR2440366A1 (de)
GB (1) GB2034315A (de)
HU (1) HU182734B (de)
SU (1) SU1310398A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137723A (en) * 1989-05-19 1992-08-11 Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo α-Glycosyl-L-ascorbic acid, and its preparation and uses
US5817238A (en) * 1994-12-26 1998-10-06 Nippon Rensui Co. Process for producing purified L-ascorbic acid
WO2000046216A1 (de) * 1999-02-05 2000-08-10 Merck Patent Gmbh Verfahren zur herstellung von l-ascorbinsäure
WO2002077443A1 (de) * 2001-03-28 2002-10-03 Robert Bosch Gmbh Kraftstoff-einspritzvorrichtung, insbesondere injektor, für brennkraftmaschinen
US6610863B2 (en) * 2000-12-22 2003-08-26 Eastman Chemical Company Continuous process for producing L-ascorbic acid
US6617463B2 (en) 2000-05-10 2003-09-09 Basf Aktiengesellschaft Method for the production of L-ascorbic acid by lactonization of 2-keto-L-gulonic acid or s2-keto-L-gulonate esters
US6716997B1 (en) 2001-10-09 2004-04-06 Eastman Chemical Company Systems and methods for generation of ascorbic acid with reduced color
US6740762B2 (en) 2001-08-24 2004-05-25 Eastman Chemical Company Process for ascorbic acids using alkaline earth silicate catalysts
US6864376B2 (en) 2000-12-22 2005-03-08 Eastman Chemical Company Process for producing ascorbic acid
CN110372649A (zh) * 2019-08-08 2019-10-25 安徽丰原发酵技术工程研究有限公司 一种以古龙酸为原料的一步酸法制备维生素c的方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4845246A (en) * 1987-06-15 1989-07-04 Takeda Chemical Industries, Ltd. Ascorbic acid ester
DE19734086C1 (de) * 1997-08-07 1998-08-13 Merck Patent Gmbh Verfahren zur Herstellung von L-Ascorbinsäure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2462251A (en) * 1945-05-16 1949-02-22 Merck & Co Inc Process for preparing ascorbic acids

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5137723A (en) * 1989-05-19 1992-08-11 Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo α-Glycosyl-L-ascorbic acid, and its preparation and uses
US5616611A (en) * 1989-05-19 1997-04-01 Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo α-glycosyl-L-ascorbic acid, and its preparation and uses
US5817238A (en) * 1994-12-26 1998-10-06 Nippon Rensui Co. Process for producing purified L-ascorbic acid
WO2000046216A1 (de) * 1999-02-05 2000-08-10 Merck Patent Gmbh Verfahren zur herstellung von l-ascorbinsäure
JP2002536371A (ja) * 1999-02-05 2002-10-29 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング Ｌ−アスコルビン酸の調製方法
US6617463B2 (en) 2000-05-10 2003-09-09 Basf Aktiengesellschaft Method for the production of L-ascorbic acid by lactonization of 2-keto-L-gulonic acid or s2-keto-L-gulonate esters
US6610863B2 (en) * 2000-12-22 2003-08-26 Eastman Chemical Company Continuous process for producing L-ascorbic acid
US6864376B2 (en) 2000-12-22 2005-03-08 Eastman Chemical Company Process for producing ascorbic acid
WO2002077443A1 (de) * 2001-03-28 2002-10-03 Robert Bosch Gmbh Kraftstoff-einspritzvorrichtung, insbesondere injektor, für brennkraftmaschinen
US6740762B2 (en) 2001-08-24 2004-05-25 Eastman Chemical Company Process for ascorbic acids using alkaline earth silicate catalysts
US6716997B1 (en) 2001-10-09 2004-04-06 Eastman Chemical Company Systems and methods for generation of ascorbic acid with reduced color
CN110372649A (zh) * 2019-08-08 2019-10-25 安徽丰原发酵技术工程研究有限公司 一种以古龙酸为原料的一步酸法制备维生素c的方法

Also Published As

Publication number Publication date
FR2440366A1 (fr) 1980-05-30
SU1310398A1 (ru) 1987-05-15
DE2939052A1 (de) 1980-05-14
HU182734B (en) 1984-03-28
DD141832A1 (de) 1980-05-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)