A Novel Synthetic Route to Imidazole Derivatives: Synthesis of Mesoionic 3-Alkyl-2-arylthio-1,3-diazolium-4-olates

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Abstract
The reaction between N-alkylisocyanoacetamides 3a-e and arylsulfenyl chlorides 4a, c, f-i affords arylcarbonimidochloridothioates 5a-i which on treatment with triethylamine undergo ring-closure to give 3-alkyl-2-arylthio-1,3-diazolium-4-olates 8a-i.

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