Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2004-04-26
2009-10-27
Andres, Janet L (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C546S315000, C546S334000
Reexamination Certificate
active
07608720
ABSTRACT:
The present invention relates to a novel process for the preparation of 2-amino-methylpyridine derivatives of the formula (I), comprising reacting in a first step 2-substituted pyridine derivatives of the formula (II), with a nitroalkane of the formula (III), in the presence of a base resulting in 2-nitromethylpyridine derivatives of the formula (IV) and hydrogenating these 2-nitromethylpyridine derivatives of the formula (IV) in a second step in the presence of a catalyst and in the presence of an acid, where in the formulae n, X, Y, R1, R2and A are as defined in the description.
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Burton Brian
Stolting Jorn
Andres Janet L
Bayer Cropscience AG
Ostrolenk Faber LLP
Robinson Binta M
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