Cu(II)-catalyzed regioselective ring-opening of N-tosylazetidines with phenols
作者:Xiu-Mei Kan、Jie Zhu、Pin-Hua Li、Zhi-Chuan Wu、Pei-Jun Yang
DOI:10.1016/j.tet.2023.133263
日期:2023.2
Regio- and Stereoselective Ring Opening of Enantiomerically Enriched 2-Aryl Oxetanes and 2-Aryl Azetidines with Aryl Borates
作者:Ferruccio Bertolini、Stefano Crotti、Valeria Di Bussolo、Franco Macchia、Mauro Pineschi
DOI:10.1021/jo801568a
日期:2008.11.21
The regioselective ringopening of 2-aryl-substituted four-membered heterocyclic rings with phenols, including catechol, was achieved by the use of aryl borates in mild and neutral reaction conditions without the aid of any transition metal catalysts. While N-alkyl azetidines were found not to be reactive, optically active N-tosyl azetidines gave the corresponding beta-aryloxy amines in a racemic form