I 2-Catalyzed Cyclization of β-Ketonitrile with 1 H-Pyrazol-5-amine
Tian Sang, Fan Jia, Jing He, Chuntian Li, Yan Liu, Ping Liu
Chinese Journal of Organic Chemistry . 2023, (1): 195 -201 .  DOI: 10.6023/cjoc202206017