S. S.  Chavan, Supekar, M. V., Burate, P. A., Rupanwar, B. D., Shelke, A. M., and Suryavanshi, G., ?Efficient Sn(II)-catalyzed one-pot synthesis of a 3-substituted azetidine-2,4-dione framework?, Organic & Biomolecular Chemistry, vol. 15, no. 11, pp. 2385-2391, 2017.