ES456890A1 - Procedimiento para preparar un acido alfa-tienilacetico. - Google Patents
Procedimiento para preparar un acido alfa-tienilacetico.Info
- Publication number
- ES456890A1 ES456890A1 ES456890A ES456890A ES456890A1 ES 456890 A1 ES456890 A1 ES 456890A1 ES 456890 A ES456890 A ES 456890A ES 456890 A ES456890 A ES 456890A ES 456890 A1 ES456890 A1 ES 456890A1
- Authority
- ES
- Spain
- Prior art keywords
- preparing
- thienylacetic
- glyoxylic ester
- acids
- thienylacetic acids
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 239000002253 acid Substances 0.000 title 1
- 150000007513 acids Chemical class 0.000 title 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 abstract 2
- 150000002148 esters Chemical class 0.000 abstract 2
- SMJRBWINMFUUDS-UHFFFAOYSA-N 2-thienylacetic acid Chemical compound OC(=O)CC1=CC=CS1 SMJRBWINMFUUDS-UHFFFAOYSA-N 0.000 abstract 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 230000005494 condensation Effects 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 229940072033 potash Drugs 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom 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
- C07D333/28—Halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
- C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
- C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
- C07D333/24—Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
Abstract
Procedimiento para preparar un ácido alfa-tienilacético, caracterizado porque se hace reaccionar un éster glioxílico de fórmula a): *** en la que R1 representa un resto alquilo inferior de 1 a 5 átomos de carbono, R2, R3, R4 un hidrógeno, un resto alquilo inferior o un halógeno, con hidracina y después con una solución de postasa.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7700678A FR2377398A1 (fr) | 1977-01-12 | 1977-01-12 | Procede de preparation d'acides thienylacetiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES456890A1 true ES456890A1 (es) | 1978-03-01 |
Family
ID=9185377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES456890A Expired ES456890A1 (es) | 1977-01-12 | 1977-03-16 | Procedimiento para preparar un acido alfa-tienilacetico. |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4180510A (es) |
| ES (1) | ES456890A1 (es) |
| FR (1) | FR2377398A1 (es) |
| GB (1) | GB1573882A (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2587721A1 (fr) * | 1985-09-26 | 1987-03-27 | Pcas Sa | Procede de preparation de l'acide 2-thienyl acetique et de ses derives par fermentation |
-
1977
- 1977-01-12 FR FR7700678A patent/FR2377398A1/fr active Granted
- 1977-03-16 ES ES456890A patent/ES456890A1/es not_active Expired
-
1978
- 1978-01-09 GB GB795/78A patent/GB1573882A/en not_active Expired
- 1978-01-12 US US05/868,909 patent/US4180510A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| GB1573882A (en) | 1980-08-28 |
| FR2377398B3 (es) | 1980-02-22 |
| US4180510A (en) | 1979-12-25 |
| FR2377398A1 (fr) | 1978-08-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19990503 |