Synthesis and Crystal Structure of an Oxovanadium(IV) Complex with a Pyrazolone Ligand and Its Use as a Heterogeneous Catalyst for the Oxidation of Styrene under Mild Conditions

• DOI: 10.1021/ic202396q
• Publication Date: 2011-12-21T16:51:45Z
• Authors: Sanjay Parihar; Soyeb Pathan; R. N. Jadeja; Anjali Patel; Vivek K. Gupta
• Keywords: Pyrazolones

1-Phenyl-3-methyl-4-touloyl-5-pyrazolone (ligand) was synthesized and used to prepare an oxovanadium(IV) complex. The complex characterized by single-crystal X-ray analysis various spectroscopic techniques. of the shows that ligands are coordinated in a syn configuration each other create distorted octahedral environment around metal ion. A heterogeneous catalyst comprising hydrous zirconia synthesized, physicochemical techniques, successfully for solvent-free oxidation styrene. influence reaction parameters (percent loading, molar ratio substrate H2O2, amount catalyst, time) studied. reused three times without any significant loss catalytic activity.