M. Curini et al., HETEROGENEOUS CATALYSIS IN CARBONYL REGENERATION FROM OXIMES, SEMICARBAZONES, AND TOSYLHYDRAZONES BY ZIRCONIUM SULFOPHENYL PHOSPHONATE, Synlett, (4), 1996, pp. 333-334
Layered zirconium sulfophenyl phosphonate was found to be an efficient
heterogeneous catalyst for mild hydrolysis of oximes, semicarbazones,
and tosylhydrazones to their corresponding carbonyl compounds.