Having established optimized conditions, the scope and limitations of this method were investigated (Fig. ): this revealed that a variety of modifications could be accommodated. High yields and levels of enantioselectivity were generally observed with para-substituted substrates (1-5, e.r. 90:10 to 98:2), and single crystal X-ray analysis of enantioenriched 1 enabled the absolute configuration to be assigned as (S). In the solid state, an 84° offset between the planes of geminal phenyl groups was observed. To explore if this phenomenon is important in the transfer of chiral information, constrained fluorene cyclopropane 6 was subjected to the reaction conditions and a significant drop of selectivity (e.r. 70:30) was observed. In contrast, meta-substitution was well tolerated, generating 7 in 85% yield and with an e.r. of 90:10. To expand the scope of the method beyond the geminal diaryl substituted cyclopropanes, diester substrates 8-11 were investigated and found to be highly compatible with the method (up to e.r. 90:10). Finally, the impact of modifying the aryl ketone on the reaction efficiency was explored. Pleasingly, introduction of parasubstituents was well-tolerated, enabling compounds 12 (p-F) and 13 (p-Cl) to be generated in 80% (12) and 89% (13) yield and with high levels of enantioinduction (e.r. 94:6 and e.r. 88:12, respectively). Reduced levels of selectivity were observed for the m-F derivative 14 (79%, e.r.