S.  Ramalingam and Kumar, P., ?Multi-component carbon-carbon bond forming Mannich reaction catalyzed by yttria-zirconia based Lewis acid?, Catalysis Communications, vol. 9, no. 14, pp. 2445-2448, 2008.

S. S.  Shinde, Said, M. S., Surwase, T. B., and Kumar, P., ?Mild regiospecific alcoholysis and aminolysis of epoxides catalyzed by zirconium(IV) oxynitrate?, Tetrahedron Letters, vol. 56, no. 43, pp. 5916-5919, 2015.

C.  Singh, Rathod, J., Jha, V., Panossian, A., Kumar, P., and Leroux, F. R., ?Modular synthesis of biaryl-substituted phosphine ligands: application in microwave-assisted palladium-catalyzed C-N cross-coupling reactions?, European Journal of Organic Chemistry, no. 29, pp. 6515-6525, 2015.

N. S.  Khonde, Said, M. S., Sabane, J. K., Gajbhiye, J. M., and Kumar, P., ?Metal-free, Tf2NH-catalyzed 1, 6-conjugate addition of imidazopyridine to para-quinone methides: easy access to C3-functionalized triarylmethane imidazopyridine?, Tetrahedron, vol. 101, p. 132510, 2021.