RO83188B1 - Procedeu de obtinere a xantonei - Google Patents
Procedeu de obtinere a xantoneiInfo
- Publication number
- RO83188B1 RO83188B1 RO105100A RO10510081A RO83188B1 RO 83188 B1 RO83188 B1 RO 83188B1 RO 105100 A RO105100 A RO 105100A RO 10510081 A RO10510081 A RO 10510081A RO 83188 B1 RO83188 B1 RO 83188B1
- Authority
- RO
- Romania
- Prior art keywords
- acid
- xenthone
- producing
- phenol
- phenoxybenzoic
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 3
- IKCLCGXPQILATA-UHFFFAOYSA-N 2-chlorobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1Cl IKCLCGXPQILATA-UHFFFAOYSA-N 0.000 abstract 2
- PKRSYEPBQPFNRB-UHFFFAOYSA-N 2-phenoxybenzoic acid Chemical compound OC(=O)C1=CC=CC=C1OC1=CC=CC=C1 PKRSYEPBQPFNRB-UHFFFAOYSA-N 0.000 abstract 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 abstract 2
- IOPMNSPZFUJIIG-UHFFFAOYSA-N benzene chloroform dichloromethane Chemical compound ClCCl.ClC(Cl)Cl.C1=CC=CC=C1 IOPMNSPZFUJIIG-UHFFFAOYSA-N 0.000 abstract 1
- 238000006482 condensation reaction Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000007363 ring formation reaction Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Prezenta inventie se refera la un procedeu de obtinere a xentonei din acid o-clorbenzoic si fenol si anume reactia de condensare a acidului 0-clorbenzoic cu fenol are loc în prezenta hidroxidului de potasiu la temperaturi de 140.....150 degree C, dupa carese realizeaza extractia acidului o-fenoxibenzoic cu benzen diclormetan cloroform sau clorbenzen iar ciclizarea are loc cu acid sulfuric concentrat în acesti solventi fara izolarea si purificarea acidului o-fenoxibenzoic obtinut ca intermediar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO105100A RO83188B1 (ro) | 1981-08-14 | 1981-08-14 | Procedeu de obtinere a xantonei |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO105100A RO83188B1 (ro) | 1981-08-14 | 1981-08-14 | Procedeu de obtinere a xantonei |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO83188A2 RO83188A2 (ro) | 1984-02-21 |
| RO83188B1 true RO83188B1 (ro) | 1984-02-28 |
Family
ID=20110339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO105100A RO83188B1 (ro) | 1981-08-14 | 1981-08-14 | Procedeu de obtinere a xantonei |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO83188B1 (ro) |
-
1981
- 1981-08-14 RO RO105100A patent/RO83188B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO83188A2 (ro) | 1984-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES468325A1 (es) | Procedimiento para la obtencion de una mezcla de alcoholes polivalentes de bajo peso molecular | |
| RO84246B (ro) | Procedeu de izolare si purificare a unor derivati de aminozaharuri ca inhibitori de glicozihidrolaze | |
| RO83188B1 (ro) | Procedeu de obtinere a xantonei | |
| CA1146952A (en) | Process for making alpha-loweralkylfurocoumarins and novel intermediates produced therein | |
| JPS5587784A (en) | Manufacture of alphaatocopherol | |
| US3384641A (en) | 2-methylene-3-quinuclidones | |
| Majumdar et al. | Facile Regioselective Synthesis of 2-Methyl Furo [3, 2-c][1] benzopyran-4-one 2-Methyl Furo [2, 3-c][1] benzopyran-4-one | |
| DE3768766D1 (de) | Konzentrierter tee-extrakt. | |
| RO85110B1 (ro) | Procedeu de obtinere a salicilonitrilului | |
| ES2041855T3 (es) | Procedimiento para separar hierro, cromo y vanadio de acido fosforico. | |
| RO94390B1 (ro) | Procedeu de obtinere a oxalatului de cupru de calitate reactiv | |
| EP0252091A1 (en) | PREPARATION OF 3-ISOPROPYL-BENZO-2-THIA-1,3-DIAZINONE- (4) -2,2-DIOXIDE. | |
| RO82040B1 (ro) | Bis-lactame n-substituite si procedeu de obtinere a acestora | |
| RO82558B1 (ro) | Procedeu pentru obtinerea 1, 5-bis(5-nitrofurfuriliden)-acetonei | |
| RO100384B1 (ro) | Procedeu de obtinere a oxiclorurii de zinc | |
| RO83118B1 (ro) | Procedeu de preparare a 1-brom-4-dimetilamino-etoxibenzenului | |
| DK18985A (da) | Fremgangsmaade til fremstilling af et farmakologisk virksomt sulfonylurinstofderivat | |
| RO84556B1 (ro) | Procedeu de obtinere a silimarinei | |
| RO91284B1 (ro) | PROCEDEU DE RECUPERARE A SELENIULUI CONTINUT îN GAZELE REZULTATE DIN PIROMETALURGIA CUPRULUI | |
| RO91264B1 (ro) | Procedeu pentru purificarea 4,4'-(dihidroxi)difenilpropanului | |
| RO92807B1 (ro) | Procedeu de obtinere a unor extracte alcaline | |
| RO84120B1 (ro) | Procedeu de obtinere a 1-metil-2-hidroximetil-5-nitroimidazolului | |
| RO95055B1 (ro) | Procedeu de preparare a 5-clorpseudocumenului | |
| RO98835B1 (ro) | Derivat al 8-hidroxichinolinei si procedeu pentru prepararea sa | |
| RO83190B1 (ro) | Procedeu de separare si purificare a dimetilanilinei din apele reziduale rezultate de la fabricarea acidului 6-aminopenicilanic |