GB1222322A - Process for the production of vitamin c - Google Patents

Process for the production of vitamin c

Info

Publication number
GB1222322A
GB1222322A GB559569A GB559569A GB1222322A GB 1222322 A GB1222322 A GB 1222322A GB 559569 A GB559569 A GB 559569A GB 559569 A GB559569 A GB 559569A GB 1222322 A GB1222322 A GB 1222322A
Authority
GB
United Kingdom
Prior art keywords
acid
ascorbic acid
keto
feb
heating
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
Application number
GB559569A
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.)
Politechnika Slaska im Wincentego Pstrowskiego
Original Assignee
Politechnika Slaska im Wincentego Pstrowskiego
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
Priority claimed from PL12501368A external-priority patent/PL69743B1/xx
Priority claimed from PL12501568A external-priority patent/PL69744B1/xx
Priority claimed from PL13020568A external-priority patent/PL69740B1/xx
Application filed by Politechnika Slaska im Wincentego Pstrowskiego filed Critical Politechnika Slaska im Wincentego Pstrowskiego
Publication of GB1222322A publication Critical patent/GB1222322A/en
Expired 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

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1,222,322. Ascorbic acid. POLITECHNIKA SLASKA IM. W. PSTROWSKIEGO GLIWICE. 3 Feb., 1969 [23 Nov., 1968; 1 Feb., 1968 (2)], No. 5595/69. Heading C2V. Ascorbic acid is obtained by heating with a cation exchange resin a solution of a 2 - ketohexonic acid, an ester thereof or an acetal or ketonacetal derivative thereof. In examples ascorbic acid is obtained by heating diacetone- 2 - keto - 1 - gulonic acid in water and in ethyl alcohol and 2 - keto - 1 - gulonic acid in tert. butyl alcohol and in dioxane, the solutions being in contact with cation exchange resins.
GB559569A 1968-02-01 1969-02-03 Process for the production of vitamin c Expired GB1222322A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL12501368A PL69743B1 (en) 1968-02-01 1968-02-01
PL12501568A PL69744B1 (en) 1968-02-01 1968-02-01
PL13020568A PL69740B1 (en) 1968-11-23 1968-11-23

Publications (1)

Publication Number Publication Date
GB1222322A true GB1222322A (en) 1971-02-10

Family

ID=27354018

Family Applications (1)

Application Number Title Priority Date Filing Date
GB559569A Expired GB1222322A (en) 1968-02-01 1969-02-03 Process for the production of vitamin c

Country Status (10)

Country Link
JP (1) JPS4830273B1 (en)
AT (1) AT308290B (en)
CH (1) CH490368A (en)
CS (1) CS169787B2 (en)
DE (1) DE1904619C3 (en)
DK (1) DK131467C (en)
ES (1) ES363151A1 (en)
FR (1) FR2001090A1 (en)
GB (1) GB1222322A (en)
SE (1) SE363322B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491668A (en) * 1982-04-09 1985-01-01 Shionogi & Co., Ltd. Process for preparing L-ascorbic acid
EP1099697A1 (en) * 1999-11-12 2001-05-16 Basf Aktiengesellschaft Process for the preparation of alkali salts of L-ascorbic acid
WO2002051826A1 (en) * 2000-12-22 2002-07-04 Eastman Chemical Company Continuous process for producing l-ascorbic acid
US6573400B1 (en) 1999-08-19 2003-06-03 Basf Aktiengesellschaft Preparation of 2-keto-L-gulonic esters
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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2061395B1 (en) * 1993-02-09 1995-12-16 Velasco Clemente Jesus Sanchez ADDITIONAL INJECTION CARBURETTOR AIR VARIABLE AND FUEL, CONTROLLED THROUGH DIFFERENTIAL PISTON FIXED TO SLIDING WITH DIRECT LINEAR MOVEMENT.
DE10231890B4 (en) 2002-07-12 2004-07-01 Basf Ag Process for the separation of ascorbic acid from a polar solvent containing ascorbic acid and 2-keto-L-gulonic acid

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4491668A (en) * 1982-04-09 1985-01-01 Shionogi & Co., Ltd. Process for preparing L-ascorbic acid
US6573400B1 (en) 1999-08-19 2003-06-03 Basf Aktiengesellschaft Preparation of 2-keto-L-gulonic esters
EP1099697A1 (en) * 1999-11-12 2001-05-16 Basf Aktiengesellschaft Process for the preparation of alkali salts of L-ascorbic acid
US6274744B1 (en) 1999-11-12 2001-08-14 Basf Aktiengesellschaft Preparation of alkali metal salts of 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
WO2002051826A1 (en) * 2000-12-22 2002-07-04 Eastman Chemical Company Continuous process for producing l-ascorbic acid
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
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

Also Published As

Publication number Publication date
SE363322B (en) 1974-01-14
ES363151A1 (en) 1970-11-16
DK131467C (en) 1976-02-09
DE1904619A1 (en) 1970-08-27
DK131467B (en) 1975-07-21
FR2001090A1 (en) 1969-09-26
CH490368A (en) 1970-05-15
AT308290B (en) 1973-06-25
DE1904619B2 (en) 1974-10-31
DE1904619C3 (en) 1975-06-12
JPS4830273B1 (en) 1973-09-18
CS169787B2 (en) 1976-07-29

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