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Several new quinoline derivatives 6 were prepared from reaction of 4-hydroxy-2(1H)-quinolinones 1 and the ylidenenitriles 2. Compounds 9 were prepared from reaction of 1-ethylidenemalononitrile 2e with 1c,d or1f,g . Reaction of pyrano[3,2-c]quinoline 10 with 2a or 2c afforded benzo[b]pyrano[4,3-c]quinolines 11 and12 respectively. Treatment of 1b,c with malononitrile and elemental sulfur yielded...