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