5‑ Sulphosalicylic Acid: An Expeditious Organocatalyst for One‑pot Synthesis of Indenopyrazolones and its Derivatives

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(a) Safaei-Ghomi, J.; Ebrahimi, S.M. Nano-Fe3O4 –cysteine as a superior catalyst for the synthesis of indeno[1,2-c]pyrazol-4(1H)-ones. Polycycl. Aromat. Compd., 2022, 42(5), 2693-2703.
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(a) Kushwaha, S.; Baranwal, J.; Singh, S.; Jyoti, A. Synergistic effect of Ethyl lactate/GVL: A new route for the synthesis of Spirooxindole-Indazolones and its derivative. Heterocyclic Lett., 2023, 13(2), 319-329.;
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