Oxygen Atom Transfer Catalysis with Homogenous and Polymer‐Supported N,N‐ and N,N,O‐Heteroscorpionate Dioxidomolybdenum(VI) Complexes

Abstract

The N,N‐chelate ligand bis(3,5‐dimethyl‐4‐vinylpyrazol‐1‐yl)methane (bdmvpzm) and the N,N,O‐heteroscorpionate ligand bis(3,5‐dimethyl‐4‐vinylpyrazol‐1‐yl)acetic acid (Hbdmvpza), both with vinyl linkers suitable for copolymerisation, were synthesised under Vilsmeier–Haack conditions. The reactions of these ligands with [MoO2Cl2] yielded the corresponding molybdenum(VI) complexes [MoO2Cl2(bdmvpzm)] and [MoO2Cl(bdmvpza)], which were applied in oxygen atom transfer studies as mimics of dimethyl sulfoxide reductase (DMSO reductase). The catalytic properties of the homogeneous complexes and copolymers with embedded complexes were evaluated.