PROCESS FOR PRODUCING NITRILE
A process for producing a nitrile represented by the general formula (1): RC=N wherein R represents alkyl, alkenyl, aralkyl or aryl each of which may be substituted, by heating an aldoxime represented by the general formula (2): RCH=NOH wherein R is as defined above, in the presence of at least one...
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Format | Patent |
Language | English Japanese |
Published |
04.02.1993
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Abstract | A process for producing a nitrile represented by the general formula (1): RC=N wherein R represents alkyl, alkenyl, aralkyl or aryl each of which may be substituted, by heating an aldoxime represented by the general formula (2): RCH=NOH wherein R is as defined above, in the presence of at least one catalyst selected among hydroxides and alcoholates of alkali metals and alkaline earth metals, and distilling off water formed in the course of the reaction from the reaction system. The process enables nitriles useful as the starting material for the organic synthesis of perfumes, medicines and so forth to be produced in high yields at a remarkably reduced production cost.
Procédé de production d'un nitrile répondant à la formule générale (1): RC=N, dans laquelle R représente alkyle, alcényle, aralkyle ou aryle dont chacun est éventuellement substitué, la production de ce composé étant obtenue par le chauffage d'une aldoxime répondant à la formule générale (2): RCH=NOH, dans laquelle R a la même notation que ci-dessus, en présence d'au moins un catalyseur sélectionné parmi les hydroxydes et les alcoolats de métaux alcalins et de métaux alcalino-terreux, puis par l'évacuation par distillation à partir du système réactionnel de l'eau formée au cours de la réaction. Ce procédé permet de produire, avec un rendement élevé et un coût remarquablement réduit, des nitriles utilisés comme matériau de départ pour la synthèse organique des parfums, des médicaments et analogues. |
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AbstractList | A process for producing a nitrile represented by the general formula (1): RC=N wherein R represents alkyl, alkenyl, aralkyl or aryl each of which may be substituted, by heating an aldoxime represented by the general formula (2): RCH=NOH wherein R is as defined above, in the presence of at least one catalyst selected among hydroxides and alcoholates of alkali metals and alkaline earth metals, and distilling off water formed in the course of the reaction from the reaction system. The process enables nitriles useful as the starting material for the organic synthesis of perfumes, medicines and so forth to be produced in high yields at a remarkably reduced production cost.
Procédé de production d'un nitrile répondant à la formule générale (1): RC=N, dans laquelle R représente alkyle, alcényle, aralkyle ou aryle dont chacun est éventuellement substitué, la production de ce composé étant obtenue par le chauffage d'une aldoxime répondant à la formule générale (2): RCH=NOH, dans laquelle R a la même notation que ci-dessus, en présence d'au moins un catalyseur sélectionné parmi les hydroxydes et les alcoolats de métaux alcalins et de métaux alcalino-terreux, puis par l'évacuation par distillation à partir du système réactionnel de l'eau formée au cours de la réaction. Ce procédé permet de produire, avec un rendement élevé et un coût remarquablement réduit, des nitriles utilisés comme matériau de départ pour la synthèse organique des parfums, des médicaments et analogues. |
Author | FUJIKURA, YOSHIAKI OKU, MASAYUKI |
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Snippet | A process for producing a nitrile represented by the general formula (1): RC=N wherein R represents alkyl, alkenyl, aralkyl or aryl each of which may be... |
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Title | PROCESS FOR PRODUCING NITRILE |
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