Polychronidou, V., Krupp, A., Strohmann, C., & Antonchick, A. P. (2021). Cascade aza-Wittig/6π-Electrocyclization in the Synthesis of 1,6-Dihydropyridines. Organic Letters, 23(15), 6024-6029. doi:10.1021/acs.orglett.1c02099.