R. Saladino et al., OZONATION OF THIOAMIDE CONTAINING HETEROCYCLES - A NEW GENERAL AND SELECTIVE PROCEDURE FOR THE SYNTHESIS OF C-2 SUBSTITUTED HETEROAZOLE DERIVATIVES, Synthetic communications, 26(17), 1996, pp. 3241-3251
2-Mercaptoheterazoles readily react with ozone in the presence of nucl
eophiles and under mild experimental conditions to form several C-2 su
bstituted heterazoles.