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Sulfonated graphitic carbon nitride (Sg-C3N4): Highly efficient heterogeneous organo-catalyst for the condensation reactions
* 1 , 2 , 2 , 1
1  Department of Chemistry, Iran University of Science and Technology, Tehran 16846-13114
2  Catalysts and Organic Synthesis Research Laboratory, Department of Chemistry, Iran University of Science and Technology, Tehran16846-13114, Iran


Nowadays, constructing solid acid catalysts with well-defined structures, environmentally benign, high catalytic activity, easy separation, and high chemical stability is the most important area of industrial and environmental concerns. Over the past few decades, porous conjugated polymers have been employed as stable catalysts support for various organic transformations. Among these materials, graphitic carbon nitride (g-C3N4) has been widely studied in the field of photocatalysis and heterogeneous catalysis, due to its high surface area and great physical and chemical stability. Herein, we report the synthesis of sulfonated graphitic carbon nitride (Sg-C3N4) as an efficient solid acid catalyst for the preparation of various biologically nitrogen-containing heterocyclic compounds under mild reaction conditions.

Keywords: Solid acid catalyst; Sulfonated graphitic carbon nitride (Sg-C3N4); Green synthesis; Condensation reaction.