The cyclization product 2a was obtained in 87% yield after 3.75-hour electrolysis (2.3 F/mol, corresponding to 87% faradaic efficiency). CoSalen complex 3b, bearing a less sterically hindered backbone, furnished substantially lower conversion and yield, which could be attributable to the instability of the ligand backbone during electrolysis (entry 2). The reaction proved relatively insensitive to the choice of the electrolyte or the silane (entry 3-4), while was significantly affected by the solvent and catalyst loading (entry 5-6). Changing the anode from platinum mesh to reticulated vitreous carbon (RVC) provided a comparable yield (entry 7). Doubling the current led to catalyst decomposition and thus low conversion (entry 8). Control experiments established the essential roles of the catalysts, silane, and electricity, respectively (entry 9).