GB1452844A - Process for producing salts of l-asorbic acid-2-sulphate - Google Patents

Process for producing salts of l-asorbic acid-2-sulphate

Info

Publication number
GB1452844A
GB1452844A GB4676074A GB4676074A GB1452844A GB 1452844 A GB1452844 A GB 1452844A GB 4676074 A GB4676074 A GB 4676074A GB 4676074 A GB4676074 A GB 4676074A GB 1452844 A GB1452844 A GB 1452844A
Authority
GB
United Kingdom
Prior art keywords
sulphate
alkali metal
metal salts
alkaline earth
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
GB4676074A
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.)
Kumiai Chemical Industry Co Ltd
Original Assignee
Kumiai Chemical Industry Co 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
Priority claimed from JP48124395A external-priority patent/JPS5076065A/ja
Priority claimed from JP48124951A external-priority patent/JPS5752344B2/ja
Application filed by Kumiai Chemical Industry Co Ltd filed Critical Kumiai Chemical Industry Co Ltd
Priority to US05/711,410 priority Critical patent/US4071534A/en
Publication of GB1452844A publication Critical patent/GB1452844A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cosmetics (AREA)
  • Furan Compounds (AREA)

Abstract

For the preparation of mono- or di-alkali metal salts or alkaline earth metal salts of L-ascorbic acid-2-sulphate, L-ascorbic acid is first protected with a ketone or an aldehyde in the 5- and 6-positions. The resulting product is then sulphated in dimethylformamide using a sulphating agent. The sulphating agent used is either sulphur trioxide, alkali metal chlorosulphonate or sulphuryl chloride, or chlorosulphonic acid in the presence of pyridine or urea. The reaction mixture is then neutralised with an alkali metal hydroxide or an alkaline earth metal hydroxide and the protective group is removed. High yields are achieved in this procedure. The mono- or di-alkali metal salts and alkaline earth metal salts of L-ascorbic acid-2-sulphate can be used as a poultry feed additive. They lead to an improvement in the strength and thickness of the eggshells.
GB4676074A 1973-11-07 1974-10-29 Process for producing salts of l-asorbic acid-2-sulphate Expired GB1452844A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/711,410 US4071534A (en) 1973-11-07 1976-08-03 Process for producing l-ascorbic acid-2-sulfate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP48124395A JPS5076065A (en) 1973-11-07 1973-11-07
JP48124951A JPS5752344B2 (en) 1973-11-08 1973-11-08

Publications (1)

Publication Number Publication Date
GB1452844A true GB1452844A (en) 1976-10-20

Family

ID=26461078

Family Applications (2)

Application Number Title Priority Date Filing Date
GB4676074A Expired GB1452844A (en) 1973-11-07 1974-10-29 Process for producing salts of l-asorbic acid-2-sulphate
GB3484575A Expired GB1452845A (en) 1973-11-07 1974-10-29 Salts of l-asorbic acid-2-sulphate

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3484575A Expired GB1452845A (en) 1973-11-07 1974-10-29 Salts of l-asorbic acid-2-sulphate

Country Status (6)

Country Link
CA (1) CA1056838A (en)
CH (1) CH618693A5 (en)
DE (1) DE2452719C3 (en)
FR (1) FR2249667B1 (en)
GB (2) GB1452844A (en)
SU (1) SU582763A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1489734A (en) * 1975-04-08 1977-10-26 Nippon Chemiphar Co Ascorbic acid derivative and pharmaceutical compositions containing the same
CH679151A5 (en) * 1989-07-17 1991-12-31 Enco Eng Ag METHOD FOR PRODUCING dipotassium ascorbate-2-SULPHATE.
WO1991013068A1 (en) * 1990-03-01 1991-09-05 Enco Engineering Chur Ag Process for the production of dipostassium ascorbate-2-sulphate

Also Published As

Publication number Publication date
DE2452719C3 (en) 1982-04-22
FR2249667B1 (en) 1982-07-09
DE2452719A1 (en) 1975-05-15
GB1452845A (en) 1976-10-20
CH618693A5 (en) 1980-08-15
DE2452719B2 (en) 1981-04-16
CA1056838A (en) 1979-06-19
FR2249667A1 (en) 1975-05-30
SU582763A3 (en) 1977-11-30

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19941028