S.  B. Kumar, Venkataramasubramanian, V., and Sudalai, A., ?Organocatalytic sequential alpha-amination/corey-chaykovsky reaction of aldehydes: a high yield synthesis of 4-hydroxypyrazolidine derivatives?, Organic Letters, vol. 14, no. 10, pp. 2468-2471, 2012.

R. D.  Aher, B. Kumar, S., and Sudalai, A., ?One-pot synthesis of cyclic carbonates from aldehydes, sulfur ylide, and CO2?, Synlett, vol. 25, no. 1, pp. 97-101, 2014.