Thiazoles 2,3 were prepared, Cyclization of 3d yielded thiazolotrizole
4 which reacted with arlydiazonium salt and aromatic aldehydes to giv
e 7 and 8 respectively. Thiazinotriazole 9 was obtained from 3e which
was oxidized to give sulfone 10. The synthesis of thiazolotriazole 13,
imidazolotriazole 15 and N- alkyltriazole 16, 17 was also achieved.