ZA737326B - Improved process for making benzopyrans - Google Patents

Improved process for making benzopyrans

Info

Publication number
ZA737326B
ZA737326B ZA737326*A ZA737326A ZA737326B ZA 737326 B ZA737326 B ZA 737326B ZA 737326 A ZA737326 A ZA 737326A ZA 737326 B ZA737326 B ZA 737326B
Authority
ZA
South Africa
Prior art keywords
benzopyrans
making
improved process
improved
making benzopyrans
Prior art date
Application number
ZA737326*A
Inventor
H Wright
B Horrom
Original Assignee
Abbott Lab
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 Abbott Lab filed Critical Abbott Lab
Publication of ZA737326B publication Critical patent/ZA737326B/en

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
ZA737326*A 1972-10-16 1973-09-14 Improved process for making benzopyrans ZA737326B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29813272A 1972-10-16 1972-10-16

Publications (1)

Publication Number Publication Date
ZA737326B true ZA737326B (en) 1974-08-28

Family

ID=23149182

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA737326*A ZA737326B (en) 1972-10-16 1973-09-14 Improved process for making benzopyrans

Country Status (2)

Country Link
BE (1) BE806152A (en)
ZA (1) ZA737326B (en)

Also Published As

Publication number Publication date
BE806152A (en) 1974-04-16

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