Pyridinium and Quinolinium Halochromates: Kinetic and Mechanistic Aspects

Abstract

Heterocyclic halochromates, a new class of mild Cr(VI) reagents have been introduced recently as oxidizing agents for the oxidation of organic substrates. These reagents have been found to be better in their reactivity and selectivity compared to the common Cr(VI) oxidants. Pyridinium and quinolinium halochromates adds to the select list of newer Cr(VI) reagents as the most significant oxidants for the effective and selective oxidation of organic substrates under mild conditions. This review highlights the recent work done on the redox reactions of pyridinium and quinolinium halochromates from kinetic and mechanistic point of view and covers literature upto June 2010.