A. B.  Shivarkar, Gupte, S. P., and Chaudhari, R. V., ?Selective synthesis of N,N-dimethyl aniline derivatives using dimethyl carbonate as a methylating agent and onium salt as a catalyst?, Journal of Molecular Catalysis A - Chemical, vol. 226, no. 1, pp. 49-56, 2005.

S. P.  Midya, Mondal, A., Begum, A., and Balaraman, E., ?Simple cobalt(II) chloride catalyzed N-alkylation of amines with alcohols?, Synthesis-Stuttgart , vol. 49, no. 17, pp. 3957-3961, 2017.

A. C. Sunil Sekhar, Ashokkumar, A. Erumpukuth, Cygnet, C. T., Lakshmi, S. Vidhya, Deepak, F. Leonard, and Vinod, C. P., ?Mesoporous shell@macroporous core aluminosilicates as sustainable nanocatalysts for direct N-alkylation of amines?, Chemnanomat, vol. 4, no. 6, pp. 537-541, 2018.