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13.8.1.3.1.3.1 Variation 1: Oxidation with Lead(IV) Oxide

DOI: 10.1055/sos-SD-013-00323

Weaver, G. W., Science of Synthesis, (2004) 13, 238.

Lead(IV) oxide is one of the classic reagents for oxidative cyclization of acyl hydrazones ‌66‌, and is often used in acetic acid as the solvent to give 2,5-diaryl-1,3,4-oxadiazoles ‌28‌ (‌Scheme 27‌).[‌44‌] Yields are generally high and the reaction is complete in a relatively short time, usually less than one hour.

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References

[44] Meeeeee, M.; Meeeeee, M., M. Meeeeeeeee. Meee., (8888) 88, 88.

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