Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 2, Issue 18, Pages 2671-2676Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b408840a
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3-Nitropyridine and 4-substituted-3-nitropyridines were reacted with chloroform, methyl chloroacetate and ethyl 2-chloropropionate under vicarious nucleophilic substitution (VNS) conditions. Substitution was obtained in the ortho or para position to the nitro group with acceptable to good yields and regioselectivity. With potassium 5-nitropyridine-2-sulfonate the substitution took place in the 4-position. Further substitution of the sulfonate group proved to be possible.
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