of main observation and conclusion Herein, we report a practical protocol for the synthesis of sulfur cycle fused 1,2,3-triazoles through a copper(I)-catalyzed tandem click/intramolecular sulfenylation reaction. The reaction proceeded via a copper-catalyzed alkyne azide cycloaddition, followed by interception of the in situ formed cuprate-triazole intermediate with p-toluenesulfonothioate. This reaction shows broad substrate scope, complete regioselectivity, and excellent functional group tolerance under mild reaction conditions. www.cjc.wiley-vch.de

A gold‐catalyzed reaction of 2H‐tetrazoles with alkynes was described for the efficient synthesis of a variety of N‐alkenylated tetrazole derivatives, including N‐1 and N‐2 vinyl functionalized products which are readily isolated by column chromatography. The reaction mechanism was proposed to be a nucleophilic addition process to the alkyne motif activated by gold catalyst. The reaction features mild reaction condition, simple operation and high yields.

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