Isoquinolinium bromochromate; new, efficient and stable reagent for oxidation of aromatic amines and phenols

P G Department of Chemistry, Yeshwant Mahavtdyalaya, Nanded-431 605, Maharashtra, Indta

E-mail : svkhansole@yahoo.co.in

Manuscript received 6 November 2008, revised 22 May 2009, accepted 7 August 2009

The new chromium(VI) oxidizing reagent isoquinolinium bromochromate (IQBC) was prepared and characterized. This new compound has been found to be an efficient reagent for oll.idation of primary amines and phenols. The oxidation of primary amines and phenols with isoquinolinium bromochromate proceeded smoothly to afford corresponding azobenzenes and quinones in good to excellent yield. The synthesized isoquinolimum bromochromate is more ideal reagent, with number of specifications including higher yield, mild conditions and easy preparation. The results obtained with isoquinolinium bromochromate are satisfactory and suggest that this new reagent is valuable addition to the existing chromium(VI) reagents.