Method for producing aminoalkoxy benzylamines and aminoalkoxy benzonitriles as intermediates
申请人:Lober Oliver
公开号:US20050256340A1
公开(公告)日:2005-11-17
The invention relates to a process for preparing 4-[aminoalkoxy]benzylamines of the general formula (I)
by catalytically hydrogenating 4-[aminoalkoxy]benzonitriles of the general formula (II)
where, in the compounds of the general formulae I and II, R
1
is C
1
-C
8
-alkylene, R
2
and R
3
are each independently C
1
-C
8
-alkyl or are joined to give a ring which may additionally contain a heteroatom, which comprises carrying out the hydrogenation at elevated pressure and elevated temperatures. The invention further relates to a process for preparing the intermediate (II).