JPS52142073A - Method of producing benzopyran - Google Patents

Method of producing benzopyran

Info

Publication number
JPS52142073A
JPS52142073A JP5605177A JP5605177A JPS52142073A JP S52142073 A JPS52142073 A JP S52142073A JP 5605177 A JP5605177 A JP 5605177A JP 5605177 A JP5605177 A JP 5605177A JP S52142073 A JPS52142073 A JP S52142073A
Authority
JP
Japan
Prior art keywords
benzopyran
producing
producing benzopyran
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.)
Pending
Application number
JP5605177A
Other languages
English (en)
Inventor
Keaanzu Yuugu
Nooman Haadaan Deebitsudo
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
Publication of JPS52142073A publication Critical patent/JPS52142073A/ja
Pending 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)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
JP5605177A 1976-05-19 1977-05-17 Method of producing benzopyran Pending JPS52142073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2057176 1976-05-19

Publications (1)

Publication Number Publication Date
JPS52142073A true JPS52142073A (en) 1977-11-26

Family

ID=10148114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5605177A Pending JPS52142073A (en) 1976-05-19 1977-05-17 Method of producing benzopyran

Country Status (6)

Country Link
JP (1) JPS52142073A (ja)
DK (1) DK208877A (ja)
FI (1) FI771545A (ja)
NO (1) NO771722L (ja)
PT (1) PT66569B (ja)
SE (1) SE7705849L (ja)

Also Published As

Publication number Publication date
PT66569B (fr) 1979-04-13
DK208877A (da) 1977-11-20
SE7705849L (sv) 1977-11-20
PT66569A (fr) 1977-06-01
FI771545A (ja) 1977-11-20
NO771722L (no) 1977-11-22

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