Benzimidazolium dichromates : Efficient reagents for selective oxidation of alcohols to carbonyl compounds

1765-1767Benzimidazolium dichromates have been used for the selective and efficient oxidation of simple alcohols to carbonyl compounds. 2-Methylbenzimidazolium dichromate has been used as a standard compound. It has been found to oxidize selectively, primary alcohols to aldehydes, without any over-oxidation, and secondary alcohols to ketones. Of the several solvents explored, acetic acid at RT has been found to be the best medium for oxidation