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Reactions of arylidenemalononitriles la-d with 2-cyano-1,1-diaminoethene (5); arylhydrazones 14a,b and syn-2-pyridinealdoxime 15 afforded the title derivatives 3a-d; 16a,b and 17, respectively. Bipyridyl derivatives 11-13 were also synthesized. Unambiguous syntheses and/ or spectral analyses confirmed the suggested structures of 3a-d, 11-13, 16a,b and 17.

New Simple and One-Pot Synthetic Routes to Polyfunctionally Substituted Pyridines; 1,4-Dihydropyridazines and 4H-1,2-Oxazine