Facile cyclization of sodium aminodiboranate to construct a boron–nitrogen–hydrogen ring

Abstract

A facile and efficient cyclization of sodium aminodiboranate to construct a boron–nitrogen–hydrogen ring is presented. This new strategy can be developed into a general method to prepare aminodiborane and its derivatives. Theoretical calculations show that a one-step cyclization mechanism is favored, where the dihydrogen bond plays an important role.