Synthesis and Spectral Characterization of Novel Bis‐thiazole Derivatives via Ring Closure of Benzo[d]thiazol‐2‐amine,Various α‐Haloketones,and S‐Nucleophiles |
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Abstract: | Novel functionalized bis‐thiazole derivatives ( 4a–d , 9a , b , 13a–e , and 16a–d ) were synthesized in good to excellent yields (70–90%) via the ring closure of benzod ]thiazol‐2‐amine and various α‐haloketones in the presence of carbon disulfide or aryl isothiocyanates as S‐nucleophiles. The structures of newly synthesized compounds were characterized by IR, 1H NMR, 13C NMR, elemental analysis, and mass spectroscopy techniques. |
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