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An Unexpected Chelation-Controlled Yb(OTf)3-Catalyzed Aminolysis and Azidolysis of Cyclitol Epoxides

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journal contribution
posted on 11.09.2002, 00:00 by Pedro Serrano, Amadeu Llebaria, Antonio Delgado
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 regiocontrol of the process.