P. Cotelle et Jp. Catteau, NITRODECARBOXYLATION AND NITRODEFORMYLATION OF SOME ELECTRON-RICH BENZOIC-ACIDS AND BENZALDEHYDES, Synthetic communications, 26(22), 1996, pp. 4105-4112
The nitration ipso to a carboxylic or formyl group of disubstituted an
d trisubstituted benzoic acids and benzaldehydes using nitric acid in
acetic acid is described.