Reactions of alpha -bromoacetylphenoxathiin, alpha -bromoacetylphenoxathiin
-10,10-dioxide or alpha -bromoacetylthianthrene with certain p-(aryisulphon
yl)thiobenzamides lead to the formation of corresponding 2,4-disubstituted
thiazoles. The new compounds were characterized through elemental analysis
and spectral data (IR, H-1 NMR and C-13 NMR).