Alkyl 2-amino-5, 6-dialkyl-3-cyanopyridine-4-carboxylates in reactions with electrophilic reagents

AN Vasil'ev, AN Lyshchikov, OE Nasakin…

Index: Vasil'ev; Lyshchikov; Nasakin; Paramonov; Kayukov Russian Journal of Organic Chemistry, 2007 , vol. 43, # 10 p. 1537 - 1544

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Abstract

Abstract In reaction of alkyl 2-amino-5, 6-dialkyl-3-cyanopyridine-4-carboxylates with isocyanates formed unstable ureas, and with nitrous acid at 60–70° C alkyl 5, 6-dialkyl-2- oxo-1, 2-dihydro-4-pyidinecarboxylates were obtained. It was shown for the latter that their ...