Selenium heterocycles. XXXII . Synthesis of [1]benzoxepino[3,4-d]-thiazole, [1]benzothiepino[3,4-d]thiazole, [1]benzoxepino[3,4-d]selenazole,and [1]benzothiepino[3,4-d]selenazole. four novel heterocycles |
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Authors: | A. Shafiee G. Kiaeay M. Vosooghi |
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Abstract: | Starting from the readily available ethyl 2-phenyl-4-methyl-thiazole-5-carboxylate (III), 2-phenyl-4-chloromethyl-thiazole (VIII) and 2-aryl-4-chloromethylselenazole (XIV), 2-phenyl-4,10-dihydro-10-oxo-[1]benzoxepino[3,4-d]thiazole (Ia), 2-phenyl-4,10-dihydro-10-oxo[1]benzothiepino[3,4-d]thiazole (Ib), 2-aryl-4,10-dihydro-10-oxo[1]benzoxepino[3,4-d]selenazoles (IIa-IIe) and 2-aryl-4,10-dihydro-10-oxo[1]benzothiepino[3,4-d]selenazoles (IIf-IIj) were prepared. |
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