FR71920E - Process for the preparation of coumarin derivatives - Google Patents

Process for the preparation of coumarin derivatives

Info

Publication number
FR71920E
FR71920E FR71920DA FR71920E FR 71920 E FR71920 E FR 71920E FR 71920D A FR71920D A FR 71920DA FR 71920 E FR71920 E FR 71920E
Authority
FR
France
Prior art keywords
preparation
coumarin derivatives
coumarin
derivatives
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
Other languages
French (fr)
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Application granted granted Critical
Publication of FR71920E publication Critical patent/FR71920E/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic 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
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/42—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms in positions 2 and 4
    • C07D311/44—Benzo[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
    • C07D311/46—Benzo[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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
FR71920D 1952-08-26 1953-08-31 Process for the preparation of coumarin derivatives Expired FR71920E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH734823X 1952-08-26

Publications (1)

Publication Number Publication Date
FR71920E true FR71920E (en) 1960-03-14

Family

ID=4532649

Family Applications (1)

Application Number Title Priority Date Filing Date
FR71920D Expired FR71920E (en) 1952-08-26 1953-08-31 Process for the preparation of coumarin derivatives

Country Status (5)

Country Link
CH (1) CH307810A (en)
DE (1) DE932373C (en)
FR (1) FR71920E (en)
GB (1) GB734823A (en)
NL (1) NL83336C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022317A (en) * 1956-01-20 1962-02-20 Geigy Chem Corp 3-benzyl-4-hydroxycoumarin and a process for the preparation of derivatives of 3-benzyl-4-hydroxycoumarin
DE1047788B (en) * 1956-01-20 1958-12-31 Geigy Ag J R Process for the preparation of derivatives of 4-oxycoumarin

Also Published As

Publication number Publication date
CH307810A (en) 1955-06-15
GB734823A (en) 1955-08-10
DE932373C (en) 1955-08-29
NL83336C (en)

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