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N-Aryl-N-(1H-tetrazol-5-yl)benzenesulfonamides were synthesized via an eco-friendly protocol using ZnBr2-catalyzed [2 + 3] cycloaddition reaction of N-cyano-N-arylbenzenesulfonamides and sodium azide under reflux conditions in water. The products were obtained in excellent yields via an easy work-up procedure. 相似文献
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