AT298487B - Process for the preparation of substituted benzopyrans - Google Patents

Process for the preparation of substituted benzopyrans

Info

Publication number
AT298487B
AT298487B AT926270A AT926270A AT298487B AT 298487 B AT298487 B AT 298487B AT 926270 A AT926270 A AT 926270A AT 926270 A AT926270 A AT 926270A AT 298487 B AT298487 B AT 298487B
Authority
AT
Austria
Prior art keywords
preparation
substituted benzopyrans
benzopyrans
substituted
Prior art date
Application number
AT926270A
Other languages
German (de)
Inventor
Timothy Melton
Richard William Tickle
Original Assignee
Beecham Group 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 Beecham Group Ltd filed Critical Beecham Group Ltd
Application granted granted Critical
Publication of AT298487B publication Critical patent/AT298487B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
    • C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
    • C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
AT926270A 1969-10-15 1970-10-14 Process for the preparation of substituted benzopyrans AT298487B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB50703/69A GB1280044A (en) 1969-10-15 1969-10-15 Preparation of pyridyl chromenols

Publications (1)

Publication Number Publication Date
AT298487B true AT298487B (en) 1972-05-10

Family

ID=10457014

Family Applications (1)

Application Number Title Priority Date Filing Date
AT926270A AT298487B (en) 1969-10-15 1970-10-14 Process for the preparation of substituted benzopyrans

Country Status (9)

Country Link
AT (1) AT298487B (en)
BE (1) BE757454R (en)
DE (1) DE2050496A1 (en)
ES (1) ES384217A1 (en)
FR (1) FR2070131B2 (en)
GB (1) GB1280044A (en)
IE (1) IE34540B1 (en)
NL (1) NL7014946A (en)
ZA (1) ZA706821B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE713490A (en) * 1967-04-14 1968-10-10

Also Published As

Publication number Publication date
GB1280044A (en) 1972-07-05
FR2070131A2 (en) 1971-09-10
NL7014946A (en) 1971-04-19
DE2050496A1 (en) 1971-04-22
IE34540B1 (en) 1975-06-11
ZA706821B (en) 1971-12-29
ES384217A1 (en) 1973-01-16
BE757454R (en) 1971-04-13
FR2070131B2 (en) 1974-09-20
IE34540L (en) 1971-04-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee