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Microwave Assisted Solvent Free Friedlander Synthesis of 1, 8-Naphthyridines

S. Ravichandran, K. Subramania and R. Arunkumar

1, 4 - Diazabicyclo [2.2.2] octane (DABCO) catalyzed Friedlander condensation of 2- aminonicotinaldehyde (1) with carbonyl compounds containing 9-methylene group (2a-g) has been achieved in solvent – free condition under microwave irradiation to give 1, 8-naphthyridines (3a-g).