Asghari, S., et al. “One Pot Synthesis of γ-Iminolactones by Three Component Reactions Between Alkyl Isocyanides, Acetylenic Esters and Benzyl Phenyl Ketone and Its Α-Chloro Derivative”. Asian Journal of Chemistry, vol. 23, no. 2, Oct. 2010, pp. 649-51, https://asianpubs.org/index.php/ajchem/article/view/15836.