The oxidation of dioximes of aliphatic and cyclic 1,3-diketones with lead tetra-acetate has been investigated. The formation of pyrazole and pyrazoline 1,2-dioxides in moderate yields has been established. A general reaction scheme is proposed.
A. Kotali and V. P. Papageorgiou, J. Chem. Soc., Perkin Trans. 1, 1985, 2083 DOI: 10.1039/P19850002083
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