C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 213/64 (2006.01)
Patent
CA 2046676
ABSTRACT OF THE DISCLOSURE A process is disclosed for the production of 2- hydroxy-3-halo-5-nitropyridines, in which a 5-halo-6- hydroxynicotinic acid is nitrated with a mixture of nitric and sulfuric acids to form the end product. The resultant pyridines are valuable intermediate products for active ingredient syntheses.
G. Ronald Bell & Associates
Lonza Ltd.
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