Preparation of decaborane (14) through hydride ion abstraction reactions

摘要

Disclosed is a method for the preparation of decaborane-14(B10H14) in high yields from B5H9 which involve three basic procedure steps as follows: (1) conversion of B5H9 to a solid, [N(CH3)4][B9H14], by reacting NaH in a tetrahydrofuran (THF) solution in the presence of [N(CH3)4][Cl]; (2) performing a hydride abstraction on the solid after removal of THF by reacting, while stirring, a boron trihalide selected from BBr3 and BCl3 to form B10H14; and, (3) separating the B10H14 from the solid reaction mixture by a sublimation procedure.