1H-2-Benzothiopyrans and 1H-2-Benzothio-Pyrylium Salts Based On Bis(Arylmetylthio)Acetylenes: Phosphorus, Sulfur, and Silicon and the Related Elements: Vol 153, No 1

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Abstract

The intramolecular cyclization of bis(arylmethylthio)acetylenes by electrophiles like ICl, Br₂, POCl₃, and Ph₃C⁺BF₄ ⁻ to substituted 1H-2-benzothiopyrans, -thiopyrylium salts and in a specific case to a 2-thiaspiro[5,4]-deca-3,6,9-trien-8-one is described.

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1H-2-Benzothiopyrans and 1H-2-Benzothio-Pyrylium Salts Based On Bis(Arylmetylthio)Acetylenes

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1H-2-Benzothiopyrans and 1H-2-Benzothio-Pyrylium Salts Based On Bis(Arylmetylthio)Acetylenes

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