Sulfur mediated propargylic C–H alkylation of alkynes†
Jiaxi
Xu 
*a
and
Pingfan
Li
*a
*a
and
Pingfan
Li
*a
Abstract
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.
- This article is part of the themed collection: Celebrating the 90th birthday of Professor Lu Xiyan
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