Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Reexamination Certificate
2006-01-24
2008-11-25
Langel, Wayne (Department: 1793)
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
C502S324000, C546S001000
Reexamination Certificate
active
07455827
ABSTRACT:
Nicotinamides and isonicotinamides, used in the preparation of anti-TB drugs i.e. isoniazid and as an intermediate of vitamin B12are prepared from cyanopyridines and nicotinamides. Catalysts useful for the preparation of nicotinamide and isonicotinamide.
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Ghaffar et al., “The catalytic hydration of nitriles to amides using a homogenous platinum phosphinito catalyst.” Journal of Molecular Catalysis A: Chemical 160 (2000) pp. 249-261.
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Bandyopadhyay Anup Kumar
Dutta Pashupati
Prasad Hiralal
Ray Subhash Chandra
Roy Shyam Kishore
Council of Scientific and Industrial Research
Langel Wayne
Martinez Brittany M
Nixon & Vanderhye P.C.
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