“…Chromium(VI) compounds have proved to be versatile reagents capable of oxidizing almost every oxidiasable functional group. A number of new chromium(VI) containing compounds, with heterocyclic bases, like isoquinolinium bromochromate 1 , triphenylmethylposphonium chlorochromate 2 , prolinium chlorochromate 3 , t r i p r o p y l a m m o n i u m f l u o r o c h r o m a t e 4 , benzimidazolium fluorochromate 5 , quinolinium chlorochromate 6 , tetrahexylammonium bromochromate 7 , 4-benzylpyridinium fluorochromate 8 , tetraethyl ammonium bromochromate 9 and tetrabutylammonium bromochromate 10 have been developed in recent years to improve the selectivity of oxidation of organic compounds.…”