公开(公告)号：BRPI0409005A

公开(公告)日：2006-03-28

申请号：BRPI0409005

申请日：2004-04-14

Applicant: BASF AG

Inventor： WARTINI ALEXANDER ,  DERNBACH MATHIAS ,  MAAS STEFFEN

IPC: C07C29/141 ,  C07C31/20

Abstract: Disclosed is a method for the catalytic hydrogenation of methylol alkanals of general formula (I), where R 1 and R 2 independently represent an additional methylol group or an alkyl group having with 1 to 22 carbon atoms, or an alkyl group with 1 to 22 C atoms, or an aryl group or aralkyl group with 6 to 33 carbon atoms, in the liquid phase on a hydrogenation catalyst. The inventive method is characterized in that a pH value ranging between 6.3 and 7.8 is adjusted in the hydrogenation feed by adding at least one tertiary amine