Ponzio Reaction

G. Ponzio, Gazz. Chim. Ital. 27, I, 171 (1897).

Formation of dinitrophenylmethanes from benzaldoximes by oxidation with nitrogen dioxide in ether:



J. L. Riebsomer, Chem. Rev. 36, 183 (1945); L. F. Fieser, W. von E. Doering, J. Am. Chem. Soc. 68, 2252 (1946); L. F. Fieser, M. Fieser, Reagents for Organic Synthesis (New York, 1967) p 325; H. G. Padeken et al., Houben-Weyl 10/1, 113 (1971). Improved procedure: H. Suzuki et al., Bull. Chem. Soc. Japan 61, 2929 (1988).