ES2083324B1 - PROCEDURE FOR OBTAINING NITRILS FROM ALPHA-KETOACIDES. - Google Patents
PROCEDURE FOR OBTAINING NITRILS FROM ALPHA-KETOACIDES.Info
- Publication number
- ES2083324B1 ES2083324B1 ES9302366A ES9302366A ES2083324B1 ES 2083324 B1 ES2083324 B1 ES 2083324B1 ES 9302366 A ES9302366 A ES 9302366A ES 9302366 A ES9302366 A ES 9302366A ES 2083324 B1 ES2083324 B1 ES 2083324B1
- Authority
- ES
- Spain
- Prior art keywords
- nitrils
- procedure
- obtaining
- solvent
- ketoacides
- 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 - Fee Related
Links
Abstract
PROCEDIMIENTO DE OBTENCION DE NITRILOS A PARTIR DE AL CETOACIDOS. COMPRENDE: HACER REACCIONAR (II) CON HIDROXILAMINA O UN DERIVADO REACTIVO DE LA MISMA, EN PRESENCIA DE UN ALCOHOL ALIFATICO DE BAJO PESO MOLECULAR COMO DISOLVENTE Y DE PIRIDINA COMO CATALIZADOR, A LA TEMPERATURA DE REFLUJO DEL DISOLVENTE, CON AGITACION Y DURANTE UN PERIODO DE TIEMPO COMPRENDIDO ENTRE 14 Y 30 HORAS PARA PRODUCIR UNA CETOXIMA INTERMEDIA QUE NO SE AISLA DEL MEDIO DE REACCION Y QUE SE DESCARBOXILA ESPONTANEAMENTE EN ESTAS CONDICIONES PARA PRODUCIR EL NITRITO (I). EN LAS FORMULAS R1 REPRESENTA UN RADICAL ORGANICO ALIFATICO O AROMATICO. LOS COMPUESTOS (I) TIENEN GRAN APLICACION COMO INTERMEDIOS EN EL CAMPO QUIMICO DE LA SINTESIS ORGANICA.PROCEDURE FOR OBTAINING NITRILS FROM AL CETOACIDOS. UNDERSTANDS: REACTING (II) WITH HYDROXYLAMINE OR A REACTIVE DERIVATIVE OF THE SAME, IN THE PRESENCE OF A LOW MOLECULAR ALIFATIC ALCOHOL AS A SOLVENT AND OF PIRIDINE AS A CATALYST, AT THE SOLVENT'S REFLUX TEMPERATURE, WITH TIME INCLUDED BETWEEN 14 AND 30 HOURS TO PRODUCE AN INTERMEDIATE CETOXIME THAT IS NOT ISOLATED FROM THE REACTION MEDIA AND SPONTANEOUSLY DECARBOXYLATED IN THESE CONDITIONS TO PRODUCE NITRITE (I). IN FORMULAS R1 IT REPRESENTS AN ORGANIC ALIPHATIC OR AROMATIC RADICAL. COMPOUNDS (I) HAVE GREAT APPLICATION AS INTERMEDIATES IN THE CHEMICAL FIELD OF ORGANIC SYNTHESIS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9302366A ES2083324B1 (en) | 1993-11-12 | 1993-11-12 | PROCEDURE FOR OBTAINING NITRILS FROM ALPHA-KETOACIDES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9302366A ES2083324B1 (en) | 1993-11-12 | 1993-11-12 | PROCEDURE FOR OBTAINING NITRILS FROM ALPHA-KETOACIDES. |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2083324A1 ES2083324A1 (en) | 1996-04-01 |
ES2083324B1 true ES2083324B1 (en) | 1996-12-16 |
Family
ID=8283590
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9302366A Expired - Fee Related ES2083324B1 (en) | 1993-11-12 | 1993-11-12 | PROCEDURE FOR OBTAINING NITRILS FROM ALPHA-KETOACIDES. |
Country Status (1)
Country | Link |
---|---|
ES (1) | ES2083324B1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU679576A1 (en) * | 1977-07-15 | 1979-08-15 | Предприятие П/Я В-8415 | Method of obtaining nitriles of carbolic acids |
DE3036281A1 (en) * | 1980-09-26 | 1982-05-13 | Boehringer Mannheim Gmbh, 6800 Mannheim | 0-SUBSTITUTED PETROLEUM ACID OXIMES, METHOD FOR THE PRODUCTION THEREOF, THEIR USE AND MEDICINAL PRODUCTS CONTAINING THESE COMPOUNDS |
US5281744A (en) * | 1992-03-02 | 1994-01-25 | Shell Oil Company | Process for the preparation of nitriles |
-
1993
- 1993-11-12 ES ES9302366A patent/ES2083324B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2083324A1 (en) | 1996-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19931112 Kind code of ref document: B1 Effective date: 19931112 |
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FD2A | Announcement of lapse in spain |
Effective date: 20141120 |