18‐Crown‐6 Catalyzed Microwave‐mediated Synthesis of Symmetric Bis‐Heterocyclic Compounds under Solvent‐free Condition

An efficient, solvent-free and 18-crown-6 catalyzed method for the synthesis of N-alkyl-4-(4-(5-(2-(alkyl-amino)thiazol-4-yl)pyridin-3-yl)phenyl)thiazol-2-amine, N-alkyl-4-(5-(2-alkyamino)thiazol-4-yl)pyridine-3-yl)thiazol-2-amine, and 4,4′-bis-{2-[amino]-4-thiazolyl}biphenyl bis-heterocyclic derivatives via microwave accelerated cyclization is presented.

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