A Conventional and Micro wave Assisted Synthesis of 3-(3-(4-chlorophenyl)acryloyl)-2H-chromen-2-one Using Eco-Friendly Catalyst And Its Characterisation

A convenient and efficient method of Chloro substituted (3-(4-chlorophenyl) acryloyl)-2H-chromen-2-one derivatives were achieved by following two stage .In a first stage 3-Acetyl coumarin were synthesised by a Microwave assisted Method .The mixture of salicyaldehyde and ethyl aceto acetate by a Von Pechmann condensation using Zn [(L)-Proline] 2 as solvent free catalyst.The Organo metallic Catalyst Zinc amino complex was prepared by adding tri ethyl amine and L-Proline in Methanol followed by adding zinc acetate,after completion of reaction getting white Zn [(L)-Proline] 2 complex .In a second stage 3-acetyl coumarin and 4-chloro benzaldehyde were allowed to react with PEG-600 as a solvent by Claisen-Schmidt condensation which gives 3-(3-(4-chlorophenyl) acryloyl)-2H-chromen-2-one by green chemistry approach.In Previous methods of synthesis both conventional and microwave irradiation.The progress of the reaction was monitored by TLC and separated the compound using column chromatography.The synthesized compound structures were identified and confirmed by UV-Visible, FT-IR and 1 H NMR and Mass spectral analysis respectively.