Abstract
Microwave assisted Claisen–Schmidt condensation of 2-(4-acetylphenyl-amino)-3-(4-methoxyphenyl)-1,8-naphthyridine 3 with various aromatic aldehydes under solvent-free conditions to prepare α,β-unsaturated ketones 4 using LiCl as catalyst has been described. The products are obtained in good yields and excellent purities.
Acknowledgment
One of the authors (NVR) is grateful to CSIR, New Delhi for the award of a senior research fellowship.