Cycloaddition reactions of benzothiete with azomethines |
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Authors: | Dominic Jacob Herbert Meier |
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Abstract: | A new synthetic route to 3,4-dihydro-2H-1,3-benzothiazines 5 has been developed by the regiospecific cycloaddition of Schiff bases 4 and benzothiete 1 , which is primarily opened by heating to the corresponding o-quinoidal form 2 . |
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