BENZYLTRIMETHYLAMMONIUM FLUOROCHROMATE(VI): A NOVEL, EFFICIENT AND SELECTIVE OXIDANT

Mohammed Zaman Kassaee,* Mohsan Hattami, and Loghman Moradi
Department of Chemistry, Tarbiat Modarres University, P.O. Box 14155- 4838, Tehran, Iran

Abstract
Benzyltrimethylammonium fluorochromate (VI), BTMAFC, is synthesized by reacting benzyltrimethylammonium bromide with an aqueous solution of CrO₃ and HF. This new reagent, (C₆H₅CH₂)(CH₃)₃N[CrO₃F], is used for almost quantitative conversion of oximes into the parent ketones or aldehydes. BTMAFC is used under mild and neutral conditions for fast and selective oxidation of primary, secondary, allylic and benzylic alcohols to their corresponding carbonyl compounds, in high yields.

Key words: Benzyltrimethylammonium fluorochromate (VI), oksidant, carbonyl compounds, alcohols.