84095-91-0Relevant academic research and scientific papers
Tf2O-Mediated Cyclization of α-Acyl-β-(2-aminopyridinyl)acrylamides: Access to N-Substituted 4 H-Pyrido[1,2- a]pyrimidin-4-imines
Bhujanga Rao, Chitturi,Dong, Dewen,Hu, Jiana,Liang, Yongjiu,Wang, Yu,Yuan, Jingwen,Zhang, Ning,Zhang, Rui
, p. 4695 - 4705 (2020/05/08)
A facile and efficient direct synthesis of N-substituted 4H-pyrido[1,2-a]pyrimidin-4-imines is developed from α-acyl-β-(2-aminopyridinyl)acrylamides mediated by triflic anhydride (Tf2O) in the presence of 2-chloropyridine. This amide activation
