Title of article
Ultrasound-promoted greener synthesis of 2H-chromen-2-ones catalyzed by copper perchlorate in solventless media
Author/Authors
Puri، نويسنده , , Saurabh and Kaur، نويسنده , , Balbir and Parmar، نويسنده , , Anupama and Kumar، نويسنده , , Harish، نويسنده ,
Pages
3
From page
705
To page
707
Abstract
Copper perchlorate is found to be a heterogeneous catalyst for an efficient and greener synthesis of 4-substituted 2H-chromen-2-ones via von Pechmann condensation of substituted phenols and β-keto esters in solventless media with excellent yields using ultrasound irradiation. The present methodology offers several advantages such as excellent yields, simple procedure and milder conditions.
Keywords
Heterogeneous catalyst , Ultrasound irradiation , 4-Substituted 2H-chromen-2-ones , von Pechmann condensation
Journal title
Astroparticle Physics
Record number
2006605
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