Method for producing 3-methyl-1,5-pentanediol

Details Method for producing 3-methyl-1,5-pentanediol Method for producing 3-methyl-1,5-pentanediol

C - Chemistry, Metallurgy

07

C

C07C 29/132 (2006.01) C07C 31/20 (2006.01) C07B 61/00 (2006.01)

Patent

CA 2650550

Disclosed is a method for production of 3-methyl-1,5-pentanediol by hydrogenation of 2-hydroxy-4-methyltetrahydropyran in the presence of a hydrogenation catalyst, wherein the method is characterized by performing the hydrogenation additionally in the presence of a basic compound. The method enables to produce highly pure MPD by the hydrogenation of MHP with a conventional hyrogenation catalyst, while preventing the formation of any by-product such as MPAE or MVL effectively.

La présente invention concerne un procédé de production du 3-méthyl-1,5-pentanediol par l'hydrogénation du 2-hydroxy-4-méthyltétrahydropyranne en présence d'un catalyseur d'hydrogénation, le procédé étant caractérisé par le fait d'effectuer l'hydrogénation en plus en présence d'un composé basique. Le procédé permet de produire un MPD de très grande pureté par l'hydrogénation du MHP avec un catalyseur d'hydrogénation classique, tout en empêchant de manière efficace la formation de tout sous-produit tel que MPAE ou MVL.

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