GB1044608A - Substituted 3-(ª‰-hydroxyalkyl)-4-alkyl-coumarins and process for their production - Google Patents

Substituted 3-(ª‰-hydroxyalkyl)-4-alkyl-coumarins and process for their production

Info

Publication number
GB1044608A
GB1044608A GB3033265A GB3033265A GB1044608A GB 1044608 A GB1044608 A GB 1044608A GB 3033265 A GB3033265 A GB 3033265A GB 3033265 A GB3033265 A GB 3033265A GB 1044608 A GB1044608 A GB 1044608A
Authority
GB
United Kingdom
Prior art keywords
alkyl
hydroxyalkyl
coumarins
formula
group
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
GB3033265A
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.)
Cassella Farbwerke Mainkur AG
Original Assignee
Cassella Farbwerke Mainkur 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 Cassella Farbwerke Mainkur AG filed Critical Cassella Farbwerke Mainkur AG
Publication of GB1044608A publication Critical patent/GB1044608A/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
    • C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
    • C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
    • C07D311/16—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring substituted in position 7

Abstract

The invention comprises 3-(b -hydroxyalkyl)-4-alkyl coumarins of the formula <FORM:1044608/C2/1> wherein R is an alkyl group, R1 is a hydrogen atom or an alkyl, halogenoalkyl or aryl group, R2 is an alkyl, hydroxy or alkoxy group and R3 is a hydrogen atom or a hydroxy group, and a process for their preparation comprising reacting a compound of the formula <FORM:1044608/C2/2> with a compound of the formula <FORM:1044608/C2/3> in the presence of an acid condensation agent. If a hydrogen halide is used as the condensation agent the hydroxy group of the 3-b -hydroxyalkyl radical in the coumarin molecule may, at elevated temperatures, be replaced by halogen.
GB3033265A 1964-07-17 1965-07-16 Substituted 3-(ª‰-hydroxyalkyl)-4-alkyl-coumarins and process for their production Expired GB1044608A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC0033435 1964-07-17

Publications (1)

Publication Number Publication Date
GB1044608A true GB1044608A (en) 1966-10-05

Family

ID=7020828

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3033265A Expired GB1044608A (en) 1964-07-17 1965-07-16 Substituted 3-(ª‰-hydroxyalkyl)-4-alkyl-coumarins and process for their production

Country Status (3)

Country Link
CH (1) CH461527A (en)
GB (1) GB1044608A (en)
SE (1) SE316484B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452811A (en) * 1977-11-17 1984-06-05 Fidia S.P.A. Monohalogenated derivatives of 7-hydroxy-coumarin, pharmaceutical compositions containing the same and methods of using said compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452811A (en) * 1977-11-17 1984-06-05 Fidia S.P.A. Monohalogenated derivatives of 7-hydroxy-coumarin, pharmaceutical compositions containing the same and methods of using said compositions

Also Published As

Publication number Publication date
SE316484B (en) 1969-10-27
CH461527A (en) 1968-08-31

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