BE519956A - - Google Patents

Info

Publication number
BE519956A
BE519956A BE519956DA BE519956A BE 519956 A BE519956 A BE 519956A BE 519956D A BE519956D A BE 519956DA BE 519956 A BE519956 A BE 519956A
Authority
BE
Belgium
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 BE519956A publication Critical patent/BE519956A/xx

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)
  • Pyrane Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
BE519956D 1952-05-16 BE519956A ( )

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH743271X 1952-05-16

Publications (1)

Publication Number Publication Date
BE519956A true BE519956A ( )

Family

ID=4533315

Family Applications (1)

Application Number Title Priority Date Filing Date
BE519956D BE519956A ( ) 1952-05-16

Country Status (6)

Country Link
US (1) US2723276A ( )
BE (1) BE519956A ( )
DE (1) DE925472C ( )
FR (1) FR1092278A ( )
GB (1) GB743271A ( )
NL (2) NL82169C ( )

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1047788B (de) * 1956-01-20 1958-12-31 Geigy Ag J R Verfahren zur Herstellung von Derivaten des 4-Oxycumarins
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
US2872457A (en) * 1956-04-19 1959-02-03 Wisconsin Alumni Res Found Process for the preparation of 4-hydroxycoumarin derivatives
DE1017620B (de) * 1956-07-20 1957-10-17 Bayer Ag Verfahren zur Herstellung von Derivaten des 4-Oxycumarins
BE556754A ( ) * 1956-07-20
US2932652A (en) * 1957-02-11 1960-04-12 Nicholas M Molnar 3-(1'-(alpha-naphthyl) 3'-oxo-butyl) 4-hydroxy coumarin and salts thereof
US3153035A (en) * 1962-03-22 1964-10-13 Sterling Drug Inc 3-acylamino-7-glycosyloxycoumarins and their preparation
DE1263778B (de) * 1963-06-05 1968-03-21 Spitzner W Verfahren zur Herstellung von 3-(alpha-AEthinyl-benzyl)-4-oxycumarin
IL108459A0 (en) * 1993-02-05 1994-04-12 Opjohn Company 4-Hydroxy-benzopyran-2-ones and 4-hydroxy-cycloalkyl [B] pyran-2-ones useful for treating infections due to hiv and other retroviruses
IL129871A (en) * 1994-05-06 2003-11-23 Pharmacia & Upjohn Inc Process for preparing 4-phenyl-substituted octanoyl-oxazolidin-2-one intermediates that are useful for preparing pyran-2-ones useful for treating retroviral infections
CN104193718B (zh) * 2014-08-14 2016-03-30 安徽工业大学 一种催化制备双香豆素类衍生物的方法
CN112877721A (zh) * 2021-01-12 2021-06-01 河南师范大学 电化学氧化脱氢偶联合成异香豆素类化合物的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB578589A (en) * 1942-08-29 1946-07-04 Wisconsin Alumni Res Found Improvements in or relating to synthesis of 4-hydroxycoumarins
CH294903A (de) * 1951-06-05 1953-11-30 Ag J R Geigy Verfahren zur Herstellung eines Derivates des 4-Oxy-cumarins.

Also Published As

Publication number Publication date
US2723276A (en) 1955-11-08
GB743271A (en) 1956-01-11
NL82169C ( )
DE925472C (de) 1955-03-21
NL83407C ( )
FR1092278A (fr) 1955-04-20

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