An Unexpected Chelation-Controlled Yb(OTf)<sub>3</sub>-Catalyzed Aminolysis and Azidolysis of Cyclitol Epoxides
作者:Pedro Serrano、Amadeu Llebaria、Antonio Delgado
DOI:10.1021/jo0261146
日期:2002.10.1
A chelation-controlled aminolysis and azidolysis of cyclitol epoxides with Yb(OTf)(3) has been disclosed. The presence of a free OH group able to direct the coordination with the lanthanide seems essential for an efficient regio-control of the process.