Not only surprisingly facile, a hydrosilylation of pyridines under the catalysis of [Cp(iPr3P)Ru(NCCH3)2]+ has the advantages that it is 1,4‐regioselective and reversible. The products can be transformed in a variety of ways (see scheme). The related complex [CpRu(NCCH3)3]+ catalyzes the two‐hydrogen‐atom reduction of phenanthroline by HSiMe2Ph/water.

Well‐behaved: The ruthenium complex [Cp(iPr3P)Ru(NCCH3)2]+ (Cp=cyclopentadienyl) catalyzes monohydrosilylation of nitriles (see scheme) with unprecedented tolerance of most common functional groups. The catalyst is easily synthesized starting from commercially available compounds, is air‐stable, recyclable, and works under solvent‐free conditions.