A transition-metal-free, sulfur mediated propargylic C–H alkylation reaction was realized through a one-pot procedure. The reaction design involves an initial addition between alkynes and triflic anhydride activated sulfoxides, and a subsequent [2,3]-sigmatropic rearrangement of the allenyl sulfur ylides generated under basic conditions to give propargylic C–H alkylation products.

中文翻译：

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硫介导的炔烃炔丙基CH烷基化†

通过一锅法实现了无过渡金属，硫介导的炔丙基CH烷基化反应。反应设计包括在炔烃和三氟甲磺酸酐活化的亚砜之间进行初始加成反应，以及随后在碱性条件下生成的炔丙基硫烷基的[2,3]σ重排，从而生成炔丙基CH烷基化产物。