CA974525A - Pyrano benzopyrans, intermediates for their preparation and method of making them - Google Patents

Pyrano benzopyrans, intermediates for their preparation and method of making them

Info

Publication number
CA974525A
CA974525A CA084,842A CA84842A CA974525A CA 974525 A CA974525 A CA 974525A CA 84842 A CA84842 A CA 84842A CA 974525 A CA974525 A CA 974525A
Authority
CA
Canada
Prior art keywords
benzopyrans
pyrano
intermediates
preparation
making
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
CA084,842A
Other languages
English (en)
Inventor
Harry G. Pars
Raj K. Razdan
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.)
Arthur D Little Inc
Original Assignee
Arthur D Little Inc
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 Arthur D Little Inc filed Critical Arthur D Little Inc
Priority to CA210,081A priority Critical patent/CA974526A/en
Application granted granted Critical
Publication of CA974525A publication Critical patent/CA974525A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D491/00—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00
    • C07D491/02—Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups C07D451/00 - C07D459/00, C07D463/00, C07D477/00 or C07D489/00 in which the condensed system contains two hetero rings
    • C07D491/04—Ortho-condensed systems
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
    • C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
    • C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or 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 to ring carbon atoms
    • C07D207/24—Oxygen or sulfur atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
CA084,842A 1969-07-17 1970-06-05 Pyrano benzopyrans, intermediates for their preparation and method of making them Expired CA974525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA210,081A CA974526A (en) 1969-07-17 1974-09-25 Intermediates for 1,2,3,4-tetrahydro (1) benzopyrano(3,4-c) pyrroles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84269069A 1969-07-17 1969-07-17

Publications (1)

Publication Number Publication Date
CA974525A true CA974525A (en) 1975-09-16

Family

ID=25288005

Family Applications (1)

Application Number Title Priority Date Filing Date
CA084,842A Expired CA974525A (en) 1969-07-17 1970-06-05 Pyrano benzopyrans, intermediates for their preparation and method of making them

Country Status (4)

Country Link
JP (1) JPS5022560B1 (enrdf_load_stackoverflow)
CA (1) CA974525A (enrdf_load_stackoverflow)
DE (1) DE2035363A1 (enrdf_load_stackoverflow)
GB (2) GB1303530A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB1303530A (enrdf_load_stackoverflow) 1973-01-17
GB1303529A (enrdf_load_stackoverflow) 1973-01-17
JPS5022560B1 (enrdf_load_stackoverflow) 1975-07-31
DE2035363A1 (de) 1971-02-04

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