1,6-Addition of Nitrogen Nucleophile to para-Quinone Methides Catalyzed by Recyclable Bismuth Complex: Facile Access to N-Heterocyclic Substituted Unsymmetric Triarylmethane Derivatives
Donglan Liu, Haiyan Xu, Yi Hang, Hongfei Lu
Chinese Journal of Organic Chemistry . 2022, (3): 796 -802 .  DOI: 10.6023/cjoc202109026