Activation of hydrogen and hydrogenation catalysis by a borenium cation

J Am Chem Soc. 2012 Sep 26;134(38):15728-31. doi: 10.1021/ja307995f. Epub 2012 Sep 13.

Abstract

The readily prepared borenium salt [(IiPr(2))(BC(8)H(14))][B(C(6)F(5))(4)] (2) [IiPr(2) = C(3)H(2)(NiPr)(2)] is shown to activate H(2) heterolytically in the presence of tBu(3)P. Compound 2 also acts as a catalyst for the metal-free hydrogenation of imines and enamines at room temperature.