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A new synthesis of 1 3 thiazine derivatives having a dithiolane ring and their reductive cleavage with sodium cyanoborohydride



A new synthesis of 1 3 thiazine derivatives having a dithiolane ring and their reductive cleavage with sodium cyanoborohydride



Heterocycles 25(SPEC ISSUE): 183-188



Some new 1,3-thiazines containing 1,3-dithiolane were synthesized by [4 + 2] cycloaddition of 2-thioacylimino-1,3-dithiolanes with methyl vinyl ketone and allowed to react with sodium cyanoborohydride to give unusual reduction product with a loss of the dithiolane ring together with normal C = N reduction products.

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