GB1037643A - Improvements in or relating to benzofuran derivatives - Google Patents
Improvements in or relating to benzofuran derivativesInfo
- Publication number
- GB1037643A GB1037643A GB13001/63A GB1300163A GB1037643A GB 1037643 A GB1037643 A GB 1037643A GB 13001/63 A GB13001/63 A GB 13001/63A GB 1300163 A GB1300163 A GB 1300163A GB 1037643 A GB1037643 A GB 1037643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radical
- halogen
- hydrogen
- compound
- give
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
- C07D307/80—Radicals substituted by oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/79—Benzo [b] furans; Hydrogenated benzo [b] furans with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the hetero ring
- C07D307/83—Oxygen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/12—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Furan Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Novel benzofuran derivatives of general formula I <FORM:1037643/C2/1> and esters thereof, wherein R2 is a straight' branched or cyclic alkyl or alkenyl radical of up to 5 carbon atoms or a phenyl radical optionally substituted by halogen or alkoxy, R5 is hydrogen, a straight or branched alkyl or alkenyl radical of up to 5 carbon atoms, a phenyl radical optionally substituted by halogen or nitro, a phenacyl radical or a substituted or unsubstituted benzyl radical, are prepared by reacting p-quinone with a b -keto-acid ethyl ester of the general formula R2-CO-CH2-COOC2H5 to give a compound of the above formula wherein R5 is hydrogen and optionally further reacting this compound with a compound of formula R6-Halogen wherein R6 has the same significance as R5 with the exception of hydrogen, and optionally saponifying the resulting ester to give the free acid.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0066817 | 1962-04-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1037643A true GB1037643A (en) | 1966-08-03 |
Family
ID=6975282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13001/63A Expired GB1037643A (en) | 1962-04-13 | 1963-04-02 | Improvements in or relating to benzofuran derivatives |
Country Status (2)
| Country | Link |
|---|---|
| AT (1) | AT242126B (en) |
| GB (1) | GB1037643A (en) |
-
1963
- 1963-01-10 AT AT19363A patent/AT242126B/en active
- 1963-04-02 GB GB13001/63A patent/GB1037643A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AT242126B (en) | 1965-08-25 |
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