fig4

Figure 4. (A) Inner-sphere mechanism for aldehyde/ketone transfer hydrogenation catalyzed by [Ru–H] supported with coumarin-amide-based ligands. Reproduced from Ref^[43]. Copyright (2023), with permission from American Chemical Society; (B) Stoichiometric C=C coupling reaction between [{(^Dippnacnac)Mg(μ-H)}₂] and CO, and CO reduction with PhSiH₃ catalyzed by [{(^Dippnacnac)Mg(μ-H)}₂]; (C) Proposed reaction cycle for CO reduction with PhSiH₃ catalyzed by [{(^Dippnacnac)Mg(μ-H)}₂]. Reproduced from Ref^[55]. Copyright (2015), with permission from John Wiley and Sons.