Chemistry of Heterocyclic Compounds p. 909 - 914 (1986)
Update date:2022-08-16
Topics:
Yalysheva, N.Z.
Solov'eva, N.P.
Chistyakov, V.V.
Sheinker, Yu.N.
Granik, V.G.
The hydrolysis of 1-substituted 5-cyano-6-(β-dimethylamino)vinyl-4-pyrimidinones in acidic media was studied.It was shown that the 1-benzyl derivative is converted to a mixture of α-cyano-4β-benzylamino-crotonamide and 3-cyano- and 3-carbamido-4-benzyl-amino-2-pyridones.The principal product in the hydrolysis of the 1-phenyl derivative is 3-cyano-4-anilino-5-formyl-2-pyridone.Cyclization of the latter by heating in phosphorus oxychloride leads to 3-chloro-4-cyanobenzo<1,6>naphthyridine.
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