Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2007-08-14
2007-08-14
Davis, Brian (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C558S422000
Reexamination Certificate
active
10522614
ABSTRACT:
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, R1is C1-C8-alkylene, R2and R3are each independently C1-C8-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).
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Benisch Christoph
Ebel Klaus
Löber Oliver
Melder Johann-Peter
BASF - Aktiengesellschaft
Connolly Bove & Lodge & Hutz LLP
Davis Brian
LandOfFree
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