The catalytic influence of clays on Bamberger rearrangement: unexpected formation of p-nitrosodiphenyl amine from N-phenylhydroxylamine. Bamberger rearrangement. Bamberger rearrangement of phenylhydroxylamine (PHA) to para-aminophenol (PAP) is investigated at 353 K, with water as solvent, on a series of solid acid catalysts. Patch V1.13 - Age Of Empires Iii English.

Intermolecular rearrangement of N-phenylhydroxylamines in acidic aqueous solution to afford the corresponding 4-aminophenols, e.g., in aqueous sulfuric acid, is generally referred to as the Bamberger rearrangement. It has been reported that in this rearrangement the hydroxyl group is introduced into the aromatic ring via a nucleophilic attack of a hydrosulfate ion on the anilenium ion, which is generated by the heterolytic N-O bond cleavage of O-protonated N-phenylhydroxylamine. Activation Key For Password Reset 3.0. It has been found that alkoxy, halogen, phenoxy are incorporated into the aromatic ring when the rearrangement of N-phenylhydroxylamine is carried out in nucleophilic solvents.

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