SCHEDULED MAINTENANCE:
3-Amino-5R-1,2,4-oxadiazoles (IIIa—b) react at 120–130°C with phenyl isothiocyanate to give 3-acyl-amino-5-anilino-1,2,4-thiadiazoles (Va–b) presumably through a thermally induced rearrangement of the intermediates, N-(5R-1,2,4-oxadiazol-3-yl)-N′-phenylthioureas (IVa–b).
M. Ruccia, N. Vivona and G. Cusmano, J. Chem. Soc., Chem. Commun., 1974, 358 DOI: 10.1039/C39740000358
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