Selective and Clean Oxidation of Alcohols with Benzimidazolium Fluorochromate (BIFC) under Solvent Free Conditions.

Abstract

Oxidation O 0212Selective and Clean Oxidation of Alcohols with Benzimidazolium Fluorochromate (BIFC) under Solvent Free Conditions. -Benzimidazolium fluorochromate is shown to be an efficient oxidant for primary or secondary alcohols. The corresponding aldehydes or ketones are formed in high yields. -(SIVAMURUGAN, V.; RAJKUMAR, G. A.; ARABINDOO, B.; MURUGESAN*, V.; Indian J. Chem., Sect.

Kinetics and Mechanistic Approach to the Benzimidazolium fluorochromate Oxidation of Indole-2-aldehyde in various percentages of Acetic acid and Water mixture

“…The heterocyclic aldehyde used was indole-2-aldehyde. BIFC was prepared by reported method 17 and its purity is checked by an iodometric method. Acetic acid was purified by standard method and the fraction distilling at 118 o C was collected.…”

“…A search of literature revealed that only few reports are available for kinetics of oxidation of heterocyclic aldehydes [13][14][15][16] . Benzimidazolium fluorochromate [17][18][19][20] was reported as a mild, stable and selective oxidant. BIFC has been reported as an effective oxidant for the oxidation of alcohols 17,18 , benzaldehydes 19 and anilines 20 .We have been interested in the kinetic and mechanistic aspects of the oxidation by complexed Cr(VI) species, and several studies on halochromates have already been reported [19][20][21][22] .…”

“…Benzimidazolium fluorochromate [17][18][19][20] was reported as a mild, stable and selective oxidant. BIFC has been reported as an effective oxidant for the oxidation of alcohols 17,18 , benzaldehydes 19 and anilines 20 .We have been interested in the kinetic and mechanistic aspects of the oxidation by complexed Cr(VI) species, and several studies on halochromates have already been reported [19][20][21][22] . In continuation of our earlier work, we now report the kinetics of oxidation of indole-2-aldehyde by BIFC in acetic acid water medium in various solvent compositions and to determine thermodynamic parameters.…”

Oxidation of DL - Methionine by Imidazolium Chlorochromate and Benzimidazolium Chlorochromate in Aqueous Perchlorate Medium

“…The oxidants ICC and BCC were prepared and characterized according to reported method 17,18 . All other chemicals used were of AnalaR grade.…”

Kinetic and Thermodynamic study for the Oxidation of 4-Oxo-4-phenyl butanoic Acid by Tripropylammonium fluorochromate in Aqueous Acetic Acid Medium

“…In recent years, there is continued interest in the development of new Cr(VI) reagents for the effective and selective oxidation of organic substrates, under mild conditions, because Cr(VI) is established as a versatile oxidant for the oxidation of a variety of organic compounds 1 . Many Cr(VI) reagents like benzimidazolium fluorochromate 2 , tetrahexylammonium fluorochromate 3 , , quinolinium fluorochromate 6 and tetraethylammonium chlorochromate 7 have been studied in recent years for the oxidation of various organic substrates.…”