The nine new 11H-indeno[1,2-b]quinolines were synthesized in high yield with sodiumethoxide as a catalyst via the Friedlnder condensation reaction. The possible reactionmechanism was proposed. The nine new 11H-indeno [1,2-b] quinolines were synthesized in high yield with sodiumethoxide as a catalyst via the Friedlnder condensation reaction. The possible reaction mechanism was proposed.