S. Ursic et al., FORMATION OF HYDROXAMIC ACIDS PROMOTED BY METAL-IONS - INTERACTION OFALDEHYDE CARBONYL GROUP WITH C-NITROSO GROUP IN THE PRESENCE OF FERRIC IONS, Tetrahedron letters, 36(52), 1995, pp. 9547-9550
Formation of N-phenyl substituted hydroxamic acids in the reaction of
formaldehyde with substituted nitrosobenzene is strongly catalysed by
Fe3+ ions, which stabilize the transition state for the rate-controlli
ng proton transfer from the carbon of nitrosocarbinolic cation interme
diate leading to the product, hydroxamic acid.