Method for the preparation of 3-methylpyridine

Details Method for the preparation of 3-methylpyridine Method for the preparation of 3-methylpyridine

C - Chemistry, Metallurgy

07

D

C07D 213/08 (2006.01)

Patent

CA 2736305

The present invention relates to a method for the preparation of 3- methylpyridin by reacting 2-methyl-2,5-di-aminopentane and/or 3-methylpiperidin at about atmospheric pressure and a temperature of 180°C to 400°C in a hydrogen atmo-sphere free of oxygen gas in the presence of a suitable catalyst and of water and/or a volatile alcohol.

La présente invention concerne un procédé de préparation de 3-méthylpyridine par réaction de 2-méthyl-2,5-diaminopentane et/ou de 3-méthylpipéridine à environ la pression atmosphérique et à une température de 180 °C à 400 °C dans une atmosphère dhydrogène exempte doxygène gazeux en présence dun catalyseur approprié et deau et/ou dun alcool volatil.

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