Metal complexes bearing ONO ligands as highly active catalysts in carbon dioxide and epoxide coupling reactions

A Molecular Binuclear Nickel (II) Schiff Base Complex for Efficient HER Electrocatalysis

“…Table S3. The calculated atomic percentages obtained from XPS spectra for Ni, O, N, and C [14,19,[28][29][30][31].…”

“…Commercially (Darmstadt, Germany) available hydroquinone was purchased from Sigma-Aldrich. [28][29][30][31]. DCM was obtained using an M. Braun Inert Gas System GmBH (Bordeaux, France), where it is stored over a molecular sieve MB-SPS-7 (Merck KGaA, Darmstadt, Germany) under argon atmosphere.…”

Recent Advancements in Metal‐catalysts Design for CO2/Epoxide Reactions

“…Lately Mn(II), 5 Fe(II) 6 and Co(II) 7 and 8 complexes bearing a tridentate Shiff‐base ONO‐ligand were reported by Viciano and coworkers to catalyze the cycloaddition of CO 2 to PO with moderate activity in the presence of bis‐(triphenylphosphine)‐iminium chloride (PPNCl) as co‐catalyst (Figure 3). [46] Under optimized reaction conditions (3 MPa, 80 °C, 1 h), in the presence of 2 equivalents of TBAB, the Mn(II) complex 5 can reach a TOF of 1600 h −1 .…”

Mechanistic insights into the Cu(ii)/DBU-catalyzed incorporation of CO2into homopropargylic amines

“…To the nest of our knowledge, most of the effective catalytic systems for the incorporation of CO 2 into organic molecules by activating CO 2 depend on transition-metal catalysis. For example, the transition-metal catalysts of Ca, 4 Co, 13–16 Cr, 17,18 Fe, 19,20 In, 21 Mn, 22 Ni, 23 Ru, 24 and Zn 25–27 have been widely reported as the active species to activate both CO 2 and epoxide, producing the organic cyclic carbonates via the cycloaddition reaction. Propargylic amines could also be catalyzed by Ag, 28,29 Au, 30,31 Cu, 32–36 Pd, 37 and Ru 38 via the carboxylative cyclization to synthesize corresponding oxazolidinones in good yield under mild conditions.…”