We then repeated the iron spiking on a shorter timescale adding 15 mol% Fe(acac)3 at two days, and observed lower er (Figure ). Finally, we found the observed effects on yield and er were additive when both iron and silane were spiked together. Our individual spiking observations hold true in the combined case; enantioinduction is not impacted by extra silane, but is reduced in the presence of extra iron, regardless of whether extra silane is added simultaneously. Table . Solvent screen for enantioselectivity nd = not determined. a Percent conversion determined by GC-FID as the crude ratio of starting material to product peaks. b Enantiomeric ratio (er) determined by HPLC with a chiral stationary phase. Peaks reported in order of elution. c Reaction time 72 h.