[106542-73-8] · C13H22ClCrNO3 · Benzyltriethylammonium Chlorochromate · (MW 327.77)
(a mild and neutral oxidizing agent for benzylic and allylic alcohols1)
Physical Data: mp 89 °C.
Solubility: fairly sol common organic solvents.
Form Supplied in: orange crystalline solid; not commercially available.
Preparative Method: Chromic Acid (10 g, 0.1 mol) in 3 M HCl (200 mL) is added to an aqueous solution (250 mL) of Benzyltriethylammonium Chloride (22.7 g, 0.1 mol). The crude product precipitates and can be recrystallized from acetone-water; yield 86%. The reagent prepared according to this procedure was initially described as bis(benzyltriethylammonium dichromate).2 Later, it was demonstrated that the compound obtained under these conditions is actually benzyltriethylammonium chlorochromate.3
Handling, Storage, and Precautions: the reagent is a stable orange crystalline solid. No data have been reported about storage and precautions. Chromium(VI) derivatives are reported to be toxic agents. The reagent should be handled in a fume hood.
Benzyltriethylammonium chlorochromate can selectively oxidize The reagent can be utilized for the selective oxidation of Giovanni Piancatelli University of Rome
La Sapienza, Italy
The reagent can be utilized for the selective oxidation of
University of Rome