Preparation of 3,5-lutidene
AssigneeE. I. Du Pont de Nemours and Company
InventorRonald Lee Amey
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Abstract
The present invention is a process for the manufacture of 3,5-lutidine and 3-picoline from 2-methyl-1,5-pentanediamine by vapor phase reaction with hydrogen at about 400.degree.-500.degree. C. over an oxide catalyst.
Claims5
A process for the preparation of 3,5-lutidine and 3-picoline which comprises reacting in vapor phase 2-methyl-1,5-pentanediamine and hydrogen or hydrogen mixed with an inert gas over an oxide catalyst at temperatures from about 400.degree. to 500.degree. C. wherein the hydrogen or hydrogen mixed with the inert gas is present in a molar ratio from about 5/1 to 40/1 compared to the molar concentration of 2-methyl-1,5-pentanediamine and the oxide catalyst is selected from the group consisting of gamma-Al.sub.2 O.sub.3, gamma-Al.sub.2 O.sub.3 /SiO.sub.2, ZrO.sub.2 or mixtures thereof.
Dependencies are inferred from the claim text.