FR1172024A - Process for the production of 4-hydroxycoumarins - Google Patents

Process for the production of 4-hydroxycoumarins

Info

Publication number
FR1172024A
FR1172024A FR1172024DA FR1172024A FR 1172024 A FR1172024 A FR 1172024A FR 1172024D A FR1172024D A FR 1172024DA FR 1172024 A FR1172024 A FR 1172024A
Authority
FR
France
Prior art keywords
hydroxycoumarins
production
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)
Inventor
Edgar Enders
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of FR1172024A publication Critical patent/FR1172024A/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
FR1172024D 1955-09-07 1956-09-05 Process for the production of 4-hydroxycoumarins Expired FR1172024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1172024X 1955-09-07

Publications (1)

Publication Number Publication Date
FR1172024A true FR1172024A (en) 1959-02-04

Family

ID=7729405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1172024D Expired FR1172024A (en) 1955-09-07 1956-09-05 Process for the production of 4-hydroxycoumarins

Country Status (1)

Country Link
FR (1) FR1172024A (en)

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