CH637390A5 - Process for the preparation of 4-oxobenzopyran compounds - Google Patents

Process for the preparation of 4-oxobenzopyran compounds Download PDF

Info

Publication number
CH637390A5
CH637390A5 CH1218478A CH1218478A CH637390A5 CH 637390 A5 CH637390 A5 CH 637390A5 CH 1218478 A CH1218478 A CH 1218478A CH 1218478 A CH1218478 A CH 1218478A CH 637390 A5 CH637390 A5 CH 637390A5
Authority
CH
Switzerland
Prior art keywords
formula
group
compound
ester
rsa
Prior art date
Application number
CH1218478A
Other languages
English (en)
French (fr)
Inventor
Finnbarr Murphy
Peter Williams
Original Assignee
Fisons Plc
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 Plc filed Critical Fisons Plc
Publication of CH637390A5 publication Critical patent/CH637390A5/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04—Ortho-condensed systems
    • 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
    • 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
    • C07D311/78—Ring systems having three or more relevant rings
    • C07D311/92—Naphthopyrans; Hydrogenated naphthopyrans

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Pyrane Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
CH1218478A 1977-11-29 1978-11-28 Process for the preparation of 4-oxobenzopyran compounds CH637390A5 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB4952777 1977-11-29
GB4952577 1977-11-29
GB7832082 1978-08-03

Publications (1)

Publication Number Publication Date
CH637390A5 true CH637390A5 (en) 1983-07-29

Family

ID=27260092

Family Applications (2)

Application Number Title Priority Date Filing Date
CH1218478A CH637390A5 (en) 1977-11-29 1978-11-28 Process for the preparation of 4-oxobenzopyran compounds
CH143383A CH639968A5 (en) 1977-11-29 1983-03-15 Process for the preparation of 4-oxobenzopyran compounds

Family Applications After (1)

Application Number Title Priority Date Filing Date
CH143383A CH639968A5 (en) 1977-11-29 1983-03-15 Process for the preparation of 4-oxobenzopyran compounds

Country Status (7)

Country Link
JP (1) JPS5498769A (fi)
CA (1) CA1117540A (fi)
CH (2) CH637390A5 (fi)
DK (1) DK528378A (fi)
FI (1) FI783616A (fi)
PT (1) PT68839A (fi)
SE (2) SE7812089L (fi)

Also Published As

Publication number Publication date
CA1117540A (en) 1982-02-02
SE7812089L (sv) 1979-05-30
SE8304996L (sv) 1983-09-16
SE8304996D0 (sv) 1983-09-16
FI783616A (fi) 1979-05-30
CH639968A5 (en) 1983-12-15
DK528378A (da) 1979-05-30
PT68839A (fr) 1978-12-01
JPS5498769A (en) 1979-08-03

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Legal Events

Date Code Title Description
PL Patent ceased