An efficient and metal-free method for exclusively regioselective construction of aliphatic sulfonyl fluoride moiety at the C4 position of 1,2,3-triazole ring was successfully developed from the cycloaddition between but-3-ene-1, 3-disulfonyl difluoride (BDF) and organic azides in up to 95 % isolated yield.

中文翻译：

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三唑基脂肪族磺酰氟的无过渡金属区域选择性合成

通过丁-3-烯-1, 3-二磺酰二氟（BDF）之间的环加成反应，成功开发了一种高效且无金属的方法，用于在1,2,3-三唑环的C4位独家区域选择性地构建脂肪族磺酰氟部分) 和有机叠氮化物，分离产率高达 95%。