10.1021/ja307995f.s001 Jeffrey M. Farrell Jeffrey M. Farrell Jillian A. Hatnean Jillian A. Hatnean Douglas W. Stephan Douglas W. Stephan Activation of Hydrogen and Hydrogenation Catalysis by a Borenium Cation American Chemical Society 2012 enamine presence room temperature Activation imine hydrogenation IiPr 2 tBu 3P Hydrogenation Catalysis C 3H catalyst borenium Borenium CationThe H 2 heterolytically 2012-09-26 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Activation_of_Hydrogen_and_Hydrogenation_Catalysis_by_a_Borenium_Cation/2483461 The readily prepared borenium salt [(I<i>i</i>Pr<sub>2</sub>)­(BC<sub>8</sub>H<sub>14</sub>)]­[B­(C<sub>6</sub>F<sub>5</sub>)<sub>4</sub>] (<b>2</b>) [I<i>i</i>Pr<sub>2</sub> = C<sub>3</sub>H<sub>2</sub>(N<i>i</i>Pr)<sub>2</sub>] is shown to activate H<sub>2</sub> heterolytically in the presence of <i>t</i>Bu<sub>3</sub>P. Compound <b>2</b> also acts as a catalyst for the metal-free hydrogenation of imines and enamines at room temperature.