Ultra-fast and selective oxidation of styrene to benzaldehyde catalyzed by a C-scorpionate Cu(ii) complex†
Abstract
The ultra-fast, selective and eco-friendly synthesis of benzaldehyde (70% yield, TOF 1.4 × 104 h−1, 5 min) from styrene is achieved by using [CuCl2{κ3-HC(pz)3}] (pz = pyrazol-1-yl) as a reusable catalyst. This C-homoscorpionate Cu(II) complex is the first one of its class to be used as catalyst for the oxidation of styrene to benzaldehyde.