GB601789A - Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid - Google Patents

Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid

Info

Publication number
GB601789A
GB601789A GB29198/45A GB2919845A GB601789A GB 601789 A GB601789 A GB 601789A GB 29198/45 A GB29198/45 A GB 29198/45A GB 2919845 A GB2919845 A GB 2919845A GB 601789 A GB601789 A GB 601789A
Authority
GB
United Kingdom
Prior art keywords
acid
keto
gulonic
derivatives
ascorbic acid
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
GB29198/45A
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.)
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Original Assignee
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
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 Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO filed Critical Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek TNO
Publication of GB601789A publication Critical patent/GB601789A/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)

Abstract

Ascorbic acid is obtained from derivatives of keto-gulonic acid by heating esters of the monomethylene ether of l-keto-2-gulonic acid, e.g. monoacetone l - keto - 2 - gulonic with lower alcohols, in water at temperatures above about 120 DEG C. and preferably above 140 DEG C. Suitable alcohols are methyl, ethyl and butyl which may be primary, secondary or tertiary, saturated or unsaturated, aliphatic or aromatic or mixed aliphatic-aromatic. In an example, monoacetone ketogulonic acid ethyl ester is heated in water to 135-140 DEG C. to produce ascorbic acid.
GB29198/45A 1943-08-04 1945-11-02 Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid Expired GB601789A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL601789X 1943-08-04

Publications (1)

Publication Number Publication Date
GB601789A true GB601789A (en) 1948-05-12

Family

ID=19787804

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29198/45A Expired GB601789A (en) 1943-08-04 1945-11-02 Process for producing ascorbic acid from derivatives of l-keto-2 gulonic acid

Country Status (1)

Country Link
GB (1) GB601789A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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