名称:
Ag(I)-Catalyzed Regioselective Ring-Opening ofN-Tosylaziridine andN-Tosylazetidine withS-,O-, andN-Nucleophiles and Tethered Dinucleophiles
摘要:
[Ag(COD)(2)]PF6 catalyzes the ring-opening of N-tosylaziridines and -azetidines with alcohols, amines, thiols, and related tethered 1,2-ethane dinucleophiles. Initial rate studies and DFT-based evaluation of stepwise energetics suggest an inverse relationship between the nucleophilic reactivity of a heteroatom donor and its binding affinity to cationic Ag(I).