چکیده
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A green and cost-effective protocol developed using covalently bonded sulfamic acid graphitic carbon
nitride (g-C3N4/NHSO3H) for the synthesis of quinazoline derivatives using three-component condensation reaction of benzaldehyde, 2-aminotetrazole and dimedone. The XRD, TEM, SEM, EDX and FT-IR techniques were used to identify the physical and chemical properties of g-C3N4/NHSO3H. The -NHSO3H solid
catalyst, was reused eight times without significant decrease in activity. This catalyst acts as a benign acid
catalyst, a green protocol of a one-pot due to having significant advantages such as active sites containing
SO3H groups, reacting under mild conditions with high efficiency as well as the ability to recover and
reuse without decreasing activity.
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