CA964272A - Bis-chromones - Google Patents

Bis-chromones

Info

Publication number
CA964272A
CA964272A CA132,513A CA132513A CA964272A CA 964272 A CA964272 A CA 964272A CA 132513 A CA132513 A CA 132513A CA 964272 A CA964272 A CA 964272A
Authority
CA
Canada
Prior art keywords
chromones
bis
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
CA132,513A
Other languages
English (en)
Other versions
CA132513S (en
Inventor
Richard Hazard
Edward N. Wall
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.)
Fisons Ltd
Original Assignee
Fisons 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 Ltd filed Critical Fisons Ltd
Application granted granted Critical
Publication of CA964272A publication Critical patent/CA964272A/en
Expired legal-status Critical Current

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)
  • Pyrane Compounds (AREA)
  • Epoxy Compounds (AREA)
  • Pyridine Compounds (AREA)
CA132,513A 1971-01-22 1972-01-17 Bis-chromones Expired CA964272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB292471 1971-01-22

Publications (1)

Publication Number Publication Date
CA964272A true CA964272A (en) 1975-03-11

Family

ID=9748628

Family Applications (1)

Application Number Title Priority Date Filing Date
CA132,513A Expired CA964272A (en) 1971-01-22 1972-01-17 Bis-chromones

Country Status (7)

Country Link
JP (1) JPS5641633B1 (Direct)
CA (1) CA964272A (Direct)
CH (1) CH546758A (Direct)
DK (1) DK131185B (Direct)
GB (1) GB1324571A (Direct)
NL (1) NL7200726A (Direct)
SE (1) SE384861B (Direct)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1448980A (en) * 1973-01-19 1976-09-08 Fisons Ltd Unsymmetrically substituted bis-chromones

Also Published As

Publication number Publication date
CH546758A (fr) 1974-03-15
GB1324571A (en) 1973-07-25
JPS5641633B1 (Direct) 1981-09-29
DK131185C (Direct) 1975-11-10
DK131185B (da) 1975-06-09
SE384861B (sv) 1976-05-24
NL7200726A (Direct) 1972-07-25

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