Synthesis, characterization and pronounced epoxidation activity of cis-dioxo-molybdenum(VI) tridentate Schiff base complexes using tert-butyl hydroperoxide

The synthesis and catalytic performance of novel cis-dioxo-Mo(VI) complexes containing simple ONO tridentate Schiff base ligands in the epoxidation of various olefins using tert-butyl hydroperoxide in desired times with excellent chemo- and stereoselectivity have been described. The study of turnover numbers and the UV–Vis spectra of the Mo complexes in the present epoxidation system indicate well the high efficiency and stability of the catalysts during the reaction. The electron-deficient and bulky groups on the salicylidene ring of the ligand promote the effectiveness of the catalyst.

Graphical abstractNovel cis-dioxo-Mo(VI) complexes with simple tridentate Schiff base ligands catalyzed efficiently the epoxidation of olefins using TBHP, with excellent chemo- and stereoselectivity in desired reaction times.Figure optionsDownload full-size imageDownload as PowerPoint slide