Reactions of organometallic reagents with 2-thiochromene 2-oxides. A new method of synthesis of S-arylthiabenene analogues.

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Abstract

S-Arylthiabenzene analogues were synthesized by the reactions between 2-thio-chromene 2-oxides and organometallic reagents such as aryllithiums and aryl Grignard reagents. The mechanism for the formation of the S-arylthiabenzene analogues was explained by postulating the formation of thiopyrylium ion as reaction intermediates.

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