The solvent-free reaction at 80 °C (Table 2 , entry 8) produced a highly significant yield of 95% within just 5 h, demonstrating that eliminating the solvent improves both reaction efficiency and yield.
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Efficient solvent-free amide synthesis via Ritter reaction catalyzed by a reusable Fe<sub>3</sub>O<sub>4</sub>/g-C<sub>3</sub>N<sub>4</sub>/ NTMPA nanocomposite.
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