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Sabitha, G., Babu, R. S., Rajkumar, M., & Yadav, J. S. (2002). Cerium(III) Chloride Promoted Highly Regioselective Ring Opening of Epoxides and Aziridines Using NaN3in Acetonitrile:? A Facile Synthesis of 1,2-Azidoalcohols and 1,2-Azidoamines?. Organic Letters, 4(3), 343–345. doi:10.1021/ol016979q 
10.1021/ol016979q