Tetrahedron Letters (2021)
Update date:2022-08-03
Topics:
Zhu, Haibo
Yang, Liu
Meng, Jia
Xie, Zongbo
Le, Zhang-Gao
Tu, Tao
For the first time, robust NHC-Pd complexes have been demonstrated as highly efficient catalysts in the direct arylsulfonylation of boronic acids. Remarkably, a broad number of diaryliodonium salts as powerful electrophilic arylation reagents are well compatible to form functional ortho-substituted diarylsulfones in satisfactory yields. Owing to the stronger σ-donor and weaker π-acceptor properties, the acenaphthoimidazolylidene ligands exhibit higher catalytic activities towards this challenging one-step arylsulfonylation reaction.
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