BE491061A - - Google Patents

Info

Publication number
BE491061A
BE491061A BE491061DA BE491061A BE 491061 A BE491061 A BE 491061A BE 491061D A BE491061D A BE 491061DA BE 491061 A BE491061 A BE 491061A
Authority
BE
Belgium
Prior art keywords
emi
coumarinyl
bis
hydroxy
acetic acid
Prior art date
Application number
Other languages
English (en)
French (fr)
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.)
Publication of BE491061A publication Critical patent/BE491061A/fr

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D311/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02Heterocyclic 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
    • C07D311/04Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/42Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
    • C07D311/44Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3
    • C07D311/46Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring
    • C07D311/48Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4 with one hydrogen atom in position 3 unsubstituted in the carbocyclic ring with two such benzopyran radicals linked together by a carbon chain

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Pyrane Compounds (AREA)
BE491061D 1950-07-11 BE491061A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE297356X 1950-07-11

Publications (1)

Publication Number Publication Date
BE491061A true BE491061A (de)

Family

ID=6090649

Family Applications (1)

Application Number Title Priority Date Filing Date
BE491061D BE491061A (de) 1950-07-11

Country Status (2)

Country Link
BE (1) BE491061A (de)
CH (2) CH286322A (de)

Also Published As

Publication number Publication date
CH297356A (de) 1954-03-31
CH286322A (de) 1952-10-15

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