Improved process for the preparation of...

Details Improved process for the preparation of... Improved process for the preparation of...

C - Chemistry, Metallurgy

07

D

C07D 213/06 (2006.01)

Patent

CA 2597393

Methods are provided for improving production of 3,5-diethyl-l,2-dihydro-l- phenyl-2- propylpyridine (DHP). In one illustrative embodiment, the methods involve controlling the rate of reaction and temperature of the reaction during formation of DHP. In another illustrative embodiment, the methods involve neutralizing the acid catalyst subsequent to DHP formation.

L'invention concerne des procédés permettant d'améliorer la production de 3,5-diéthyl-l,2-dihydro-l-phényl-2- propylpyridine (DHP). Dans un mode de réalisation illustratif, les procédés impliquent la régulation du taux de réaction et de la température de la réaction, pendant la formation de DHP. Dans un autre mode de réalisation illustratif, les procédés impliquent la neutralisation du catalyseur acide suite à la formation de DHP.

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