DK227188D0 - METHOD OF PREPARING LACTON DERIVATIVES - Google Patents

METHOD OF PREPARING LACTON DERIVATIVES

Info

Publication number
DK227188D0
DK227188D0 DK227188A DK227188A DK227188D0 DK 227188 D0 DK227188 D0 DK 227188D0 DK 227188 A DK227188 A DK 227188A DK 227188 A DK227188 A DK 227188A DK 227188 D0 DK227188 D0 DK 227188D0
Authority
DK
Denmark
Prior art keywords
lacton
derivatives
preparing
preparing lacton
lacton derivatives
Prior art date
Application number
DK227188A
Other languages
Danish (da)
Other versions
DK227188A (en
Inventor
Horst Pauling
Christof Wehrli
Original Assignee
Hoffmann La Roche
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 Hoffmann La Roche filed Critical Hoffmann La Roche
Publication of DK227188D0 publication Critical patent/DK227188D0/en
Publication of DK227188A publication Critical patent/DK227188A/en

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)
  • Furan Compounds (AREA)
  • Catalysts (AREA)
DK227188A 1987-05-04 1988-04-26 METHOD OF PREPARING LACTON DERIVATIVES DK227188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH167687 1987-05-04

Publications (2)

Publication Number Publication Date
DK227188D0 true DK227188D0 (en) 1988-04-26
DK227188A DK227188A (en) 1988-11-05

Family

ID=4215991

Family Applications (1)

Application Number Title Priority Date Filing Date
DK227188A DK227188A (en) 1987-05-04 1988-04-26 METHOD OF PREPARING LACTON DERIVATIVES

Country Status (6)

Country Link
EP (1) EP0289894A1 (en)
JP (1) JPS63297375A (en)
KR (1) KR880013913A (en)
CN (1) CN88102718A (en)
DK (1) DK227188A (en)
NO (1) NO881936L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991013068A1 (en) * 1990-03-01 1991-09-05 Enco Engineering Chur Ag Process for the production of dipostassium ascorbate-2-sulphate

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US278831A (en) * 1883-06-05 Car-signal
US3954809A (en) * 1973-01-22 1976-05-04 Kansas State University Research Foundation Preparation of l-ascorbate 2-sulfate from l-ascorbic acid
US4071534A (en) * 1973-11-07 1978-01-31 Kumiai Chemical Industry Co., Ltd. Process for producing l-ascorbic acid-2-sulfate

Also Published As

Publication number Publication date
EP0289894A1 (en) 1988-11-09
JPS63297375A (en) 1988-12-05
DK227188A (en) 1988-11-05
NO881936L (en) 1988-11-07
NO881936D0 (en) 1988-05-03
KR880013913A (en) 1988-12-22
CN88102718A (en) 1988-11-16

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Legal Events

Date Code Title Description
AHB Application shelved due to non-payment