CH503676A - Process for the preparation of bis-chromones - Google Patents

Process for the preparation of bis-chromones

Info

Publication number
CH503676A
CH503676A CH231769A CH231769A CH503676A CH 503676 A CH503676 A CH 503676A CH 231769 A CH231769 A CH 231769A CH 231769 A CH231769 A CH 231769A CH 503676 A CH503676 A CH 503676A
Authority
CH
Switzerland
Prior art keywords
chromones
bis
preparation
Prior art date
Application number
CH231769A
Other languages
French (fr)
Inventor
Fitzmaurice Colin
Brian Lee Thomas
Original Assignee
Fisons Pharmaceuticals 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
Application filed by Fisons Pharmaceuticals Ltd filed Critical Fisons Pharmaceuticals Ltd
Priority to CH51171A priority Critical patent/CH523238A/en
Publication of CH503676A publication Critical patent/CH503676A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/22—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4
    • C07D311/24—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 4 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 in position 2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
CH231769A 1968-02-16 1969-02-14 Process for the preparation of bis-chromones CH503676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH51171A CH523238A (en) 1968-02-16 1969-02-14 Chromone derivs intermediates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7590/68A GB1256354A (en) 1968-02-16 1968-02-16 Process for the production of bis-chromones

Publications (1)

Publication Number Publication Date
CH503676A true CH503676A (en) 1971-02-28

Family

ID=9836055

Family Applications (1)

Application Number Title Priority Date Filing Date
CH231769A CH503676A (en) 1968-02-16 1969-02-14 Process for the preparation of bis-chromones

Country Status (9)

Country Link
JP (1) JPS4946623B1 (en)
AT (1) AT307416B (en)
BR (1) BR6906422D0 (en)
CH (1) CH503676A (en)
ES (1) ES363708A1 (en)
GB (1) GB1256354A (en)
IL (1) IL31560A0 (en)
NL (1) NL6902251A (en)
SE (1) SE357739B (en)

Also Published As

Publication number Publication date
AT307416B (en) 1973-05-25
ES363708A1 (en) 1971-01-01
SE357739B (en) 1973-07-09
BR6906422D0 (en) 1973-01-16
IL31560A0 (en) 1969-04-30
JPS4946623B1 (en) 1974-12-11
GB1256354A (en) 1971-12-08
NL6902251A (en) 1969-08-19

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Legal Events

Date Code Title Description
PL Patent ceased