Cobalt carbonyl catalyzed hydrosilylation of a wide variety of nitriles with HSiMe3 has been examined. The reaction generally proceeded at 60" C to give N, N-disilylamines in good yields. Electron-donating groups on aromatic nitriles facilitated the reaction, and electron- withdrawing groups decreased the rate. The reaction of aliphatic nitriles at 60" C was sluggish except for cyclopropanenitriles, whereas raising the temperature to 100" C ...
