ES401311A1 - 3,4-disubstituted 2 5h-furanones - Google Patents
3,4-disubstituted 2 5h-furanonesInfo
- Publication number
- ES401311A1 ES401311A1 ES401311A ES401311A ES401311A1 ES 401311 A1 ES401311 A1 ES 401311A1 ES 401311 A ES401311 A ES 401311A ES 401311 A ES401311 A ES 401311A ES 401311 A1 ES401311 A1 ES 401311A1
- Authority
- ES
- Spain
- Prior art keywords
- formula
- furanones
- disubstituted
- coor2
- phenyl
- 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
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members 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 ring carbon atoms
- C07D307/68—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Process for obtaining 3,4-disubstituted 2 (5ii) -furanones of formula I **(See formula)** wherein R is C 1 -alkyl, phenyl, optionally substituted one or more times by phenyl, optionally halogenated, halogen, NO2, Cf3 CN, R1 and/or OR2, or optionally substituted by chlorine, X means Cn or COOR2 and R2 means alkyl with 1 to 4 carbon atoms, characterized in that a compound of formula II R1-CO-Cl-OCOCH3 (II) Where R1 has the meaning indicated above, it is reacted in a polar solvent, in the presence of a basic condensation medium, with a compound of formula III X-CH2-COOR2 (III) where X and R2 have the meaning indicated above. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712116416 DE2116416A1 (en) | 1971-04-03 | 1971-04-03 | Process for the preparation of 3,4-disubstituted "(5H) -furanones |
Publications (1)
Publication Number | Publication Date |
---|---|
ES401311A1 true ES401311A1 (en) | 1975-02-16 |
Family
ID=5803815
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES401311A Expired ES401311A1 (en) | 1971-04-03 | 1972-03-29 | 3,4-disubstituted 2 5h-furanones |
Country Status (6)
Country | Link |
---|---|
DE (1) | DE2116416A1 (en) |
DK (1) | DK128002B (en) |
ES (1) | ES401311A1 (en) |
FR (1) | FR2132232B1 (en) |
GB (1) | GB1329678A (en) |
IL (1) | IL38873A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2845037C2 (en) * | 1978-10-16 | 1980-12-11 | Fa. Dr. Willmar Schwabe, 7500 Karlsruhe | Process for the production of tetronic acid methyl ester |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3468912A (en) * | 1966-06-06 | 1969-09-23 | Eastman Kodak Co | 3-cyano 2(5h) furanones and their preparation |
-
1971
- 1971-04-03 DE DE19712116416 patent/DE2116416A1/en active Pending
-
1972
- 1972-02-25 GB GB885972A patent/GB1329678A/en not_active Expired
- 1972-03-02 IL IL38873A patent/IL38873A/en unknown
- 1972-03-29 ES ES401311A patent/ES401311A1/en not_active Expired
- 1972-03-29 DK DK154172AA patent/DK128002B/en unknown
- 1972-03-30 FR FR7211223A patent/FR2132232B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
IL38873A0 (en) | 1972-05-30 |
GB1329678A (en) | 1973-09-12 |
DE2116416A1 (en) | 1972-10-19 |
FR2132232A1 (en) | 1972-11-17 |
FR2132232B1 (en) | 1976-08-06 |
DK128002B (en) | 1974-02-18 |
IL38873A (en) | 1975-06-25 |
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