INTRAMOLECULAR ELECTROPHILIC DISPLACEMENT OF ACYL BY NITRO GROUP DURING ATTEMPTED SYNTHESIS OF 3-NITROCOUMARINS
2-Hydroxyacetophenones undergo upon nitration in acetic acid a substitution of the acyl by nitro group followed by an intramolecular 1,3-acyl shift reminescent of a retro-Fries rearrangement to yield phenyl esters.
Benedikt, George M.,Traynor, Lee
p. 763 - 766
(2007/10/02)
Preparation of nitrophenols
A process for the preparation of nitrophenols by adding over a period of time a suspension containing from about 4 to about 20 per cent weight/volume of nitrosated phenol to a nitric acid solution containing between 45 and 100 per cent by weight of nitric acid, said solution being maintained at a temperature in the range from about 45° to 100°C.
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(2008/06/13)
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