Palladium(0)-catalyzed C(sp3)-Si bond formation via formal carbene insertion into a Si-H bondElectronic supplementary information (ESI) available: Experimental details, and characterization data. See DOI: 10.1039/c8cc06768f

Pd(0)-Catalyzed formal carbene insertion into Si-H bonds has been achieved as an efficient method for C(sp 3 )-Si bond formation. The reaction, which uses readily available N -tosylhydrazones as the diazo precursors, is highly efficient and shows a wide substrate scope. Rh( ii ) and Cu( i ) salts, which are the widely used catalysts for carbene insertion reactions, have been proved to be ineffective for the current reaction. A Pd( ii ) carbene migratory insertion/reductive elimination mechanism is proposed. Pd(0)-Catalyzed formal carbene insertion into Si-H bonds has been achieved as an efficient method for C(sp 3 )-Si bond formation.