Studies on Azole Compounds. VI. Reactions of 2, 4- and 2, 5-Disubstituted Thiazole N-Oxides with Aryl Isocyanates

摘要: The reactions of 2, 4- (Ia-d) and 5-disubstituted thiazole 3-oxides (Ie-f) with aryl isocyanates (II) were studied. While the Ia-d II proceeded smoothly to give bis (5-imidazolyl) disulfides (IV), those Ie-f did not take place. structures IV deduced from their chemical behavior spectral data. reaction mechanism is discussed.