S.  Mukherjee, Joseph, S., Bhunia, A., Gonnade, R. Ghanshyam, Reddy, S. Vardhan, and Biju, A. T., ?Enantioselective synthesis of spiro ?-butyrolactones by N-heterocyclic carbene (NHC)-catalyzed formal [3+2] annulation of enals with 3-hydroxy oxindoles?, Organic & Biomolecular Chemistry , vol. 16, pp. 2013 - 2019, 2017.

S.  Premaletha, Ghosh, A., Joseph, S., Reddy, S. Vardhan, and Biju, A. T., ?Facile synthesis of N-acyl 2-aminobenzothiazoles by NHC-catalyzed direct oxidative amidation of aldehydes?, Chemical Communications, vol. 53, no. 9, pp. 1478 - 1481, 2017.