METHOD OF PRODUCING N-SUBSTITUTED 2,6-DIALKYL MORPHOLINES

摘要

The present invention relates to a process for the preparation of N-substituted 2,6-dialkylmorpholines of the formula I in which R¹ and R², independently of one another, are hydrogen, alkyl or cycloalkyl, or R¹ and R² together with the carbon atom to which they are bonded are a 5- to 14-membered carbocycle, and R³ and R⁴, independently of one another, are alkyl or cycloalkyl, by reacting at least one carbonyl compound of the formula II in which R¹ and R² have the meanings given above, with at least one morpholine of the formula III in which R³ and R⁴ have the meanings given above, in the presence of hydrogen and at least one metal-containing catalyst, wherein the active component of the catalyst consists essentially of platinum group metals.