SE384861B - PROCEDURE FOR MAKING BIS CHROMONS - Google Patents

PROCEDURE FOR MAKING BIS CHROMONS

Info

Publication number
SE384861B
SE384861B SE69572A SE69572A SE384861B SE 384861 B SE384861 B SE 384861B SE 69572 A SE69572 A SE 69572A SE 69572 A SE69572 A SE 69572A SE 384861 B SE384861 B SE 384861B
Authority
SE
Sweden
Prior art keywords
chromons
procedure
making bis
bis
making
Prior art date
Application number
SE69572A
Other languages
Swedish (sv)
Inventor
R Hazard
E N Wall
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
Publication of SE384861B publication Critical patent/SE384861B/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)
  • Pyridine Compounds (AREA)
  • Epoxy Compounds (AREA)
SE69572A 1971-01-22 1972-01-21 PROCEDURE FOR MAKING BIS CHROMONS SE384861B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
SE384861B true SE384861B (en) 1976-05-24

Family

ID=9748628

Family Applications (1)

Application Number Title Priority Date Filing Date
SE69572A SE384861B (en) 1971-01-22 1972-01-21 PROCEDURE FOR MAKING BIS CHROMONS

Country Status (7)

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

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
CA964272A (en) 1975-03-11
DK131185C (en) 1975-11-10
DK131185B (en) 1975-06-09
CH546758A (en) 1974-03-15
JPS5641633B1 (en) 1981-09-29
GB1324571A (en) 1973-07-25
NL7200726A (en) 1972-07-25

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