ES181648A1 - Perfeccionamientos en el procedimiento de obtención de un derivado del ácido benzotetrónico - Google Patents

Perfeccionamientos en el procedimiento de obtención de un derivado del ácido benzotetrónico

Info

Publication number
ES181648A1
ES181648A1 ES181648A ES181648A ES181648A1 ES 181648 A1 ES181648 A1 ES 181648A1 ES 181648 A ES181648 A ES 181648A ES 181648 A ES181648 A ES 181648A ES 181648 A1 ES181648 A1 ES 181648A1
Authority
ES
Spain
Prior art keywords
derivative
procedure
obtaining
benzotetronic
acid
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
ES181648A
Other languages
English (en)
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.)
Spojene Farm Zavody Narodni Podnik
Original Assignee
Spojene Farm Zavody Narodni Podnik
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 Spojene Farm Zavody Narodni Podnik filed Critical Spojene Farm Zavody Narodni Podnik
Publication of ES181648A1 publication Critical patent/ES181648A1/es
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
    • C07D311/48—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 with two such benzopyran radicals linked together by a carbon chain

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES181648A 1945-11-06 1947-12-31 Perfeccionamientos en el procedimiento de obtención de un derivado del ácido benzotetrónico Expired ES181648A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH263422X 1945-11-06

Publications (1)

Publication Number Publication Date
ES181648A1 true ES181648A1 (es) 1948-02-16

Family

ID=4474845

Family Applications (1)

Application Number Title Priority Date Filing Date
ES181648A Expired ES181648A1 (es) 1945-11-06 1947-12-31 Perfeccionamientos en el procedimiento de obtención de un derivado del ácido benzotetrónico

Country Status (5)

Country Link
US (1) US2482511A (es)
CH (1) CH263422A (es)
ES (1) ES181648A1 (es)
FR (1) FR937094A (es)
GB (1) GB632801A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE535749A (es) * 1954-02-08

Also Published As

Publication number Publication date
GB632801A (en) 1949-12-05
FR937094A (fr) 1948-08-06
US2482511A (en) 1949-09-20
CH263422A (de) 1949-08-31

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