NL70633C - - Google Patents

Info

Publication number
NL70633C
NL70633C NL70633DA NL70633C NL 70633 C NL70633 C NL 70633C NL 70633D A NL70633D A NL 70633DA NL 70633 C NL70633 C NL 70633C
Authority
NL
Netherlands
Application number
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 NL70633C publication Critical patent/NL70633C/xx

Links

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)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pyrane Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
NL70633D 1949-02-14 NL70633C (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS280975X 1949-02-14

Publications (1)

Publication Number Publication Date
NL70633C true NL70633C (zh)

Family

ID=5451957

Family Applications (1)

Application Number Title Priority Date Filing Date
NL70633D NL70633C (zh) 1949-02-14

Country Status (6)

Country Link
US (1) US2647131A (zh)
BE (1) BE493593A (zh)
CH (1) CH280975A (zh)
FR (1) FR1041556A (zh)
GB (1) GB672357A (zh)
NL (1) NL70633C (zh)

Also Published As

Publication number Publication date
BE493593A (zh)
CH280975A (de) 1952-02-15
FR1041556A (fr) 1953-10-26
US2647131A (en) 1953-07-28
GB672357A (en) 1952-05-21

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