PREPARATION OF AZOCARBABORANES: OXIDATION OF 1-AMINO-O-CARBABORANE ANION IN LIQUID AMMONIA

1-Amino-o-carbaborane anions, (o-RCB10H10CNH2)2– in liquid NH3 have been found to be oxidized with KMnO4 to give the symmetrically substituted 1-azo-o-carbaboranes, RCB10H10CNNCB10H10CR (R = H, Me, Ph).