Epoxidation Processes by Pyridoxal Dioxomolybdenum(VI) (Pre)Catalysts Without Organic Solvent

Jana Pisk (1, 2) , Dominique Agustin (1) , Višnja Vrdoljakc (2) , Rinaldo Poli (1, 3)

1 LCC - Laboratoire de chimie de coordination
2 Department of Chemistry [Zagreb]
3 IUF - Institut universitaire de France

Molybdenum(VI) pyridoxal thiosemicarbazonato complexes have proved to be efficient catalysts in the olefinic epoxidation of cyclooctene by aqueous TBHP in the absence of an organic solvent. High activity and selectivity have been obtained with a catalyst loading of just 0.05% molybdenum in the case of one mononuclear (pre)catalyst (TOF 3360 h−1) under solvent‐free conditions. The influence of methanol on the activity and selectivity has been studied.

Mots clés: Epoxidation; Homogeneous catalysis; Molybdenum; Pyridoxal ligands; Solvent‐free conditions

Domaines: Chimie de coordination; Catalyse; Chimie organique

Jana Pisk, Dominique Agustin, Višnja Vrdoljakc, Rinaldo Poli. Epoxidation Processes by Pyridoxal Dioxomolybdenum(VI) (Pre)Catalysts Without Organic Solvent. Advanced Synthesis and Catalysis, 2011, 353 (16), pp.2910-2914. ⟨10.1002/adsc.201100439⟩. ⟨hal-03157929⟩