Abstract

An eco-safe synthetic route for convenient one-pot synthesizing 1H-pyrazolo[1,2-b] phthalazine-5,10-dione derivatives through Knoevenagel-Michael cyclocondensation is reported in carboxymethyl cellulose (CMC) based on green chemistry principles. The prominent benefits include use of recyclable green catalyst, commercially accessible inexpensive starting materials, operational simplicity, non-hazardous reaction circumstances, high atom-economy, solvent-free, short reaction times and high yields.

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