Previously (Figure , Figure and Schemes 4 and 5) we compared the newly designed catalysts with their most close analogue Ru5, in order to see precisely the effect of additional aryl upper wings installation on the catalysts' stability and activity. While some of the model substrates used in these experiments were tested also with other catalysts, the various conditions and loadings applied in the literature makes the direct comparison of these systems impossible (however, see SI, Tables , and S14 for a compilation of literature results).