Palladium-Catalyzed Direct α-Arylation of Methyl Sulfones with Aryl Bromides
作者:Bing Zheng、Tiezheng Jia、Patrick J. Walsh
DOI:10.1021/ol400472v
日期:2013.4.5
A direct and efficient approach for palladium-catalyzed arylation of aryl and alkyl methyl sulfones with aryl bromides has been developed. The catalytic system affords arylated sulfones in good to excellent yields (73–90%).
Synthesis of sulfone derivatives via palladium-catalyzed cross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides
作者:Juelin Wan、Weijie Yu、Tao Wang、Jin Luo
DOI:10.1080/10426507.2021.2016758
日期:2022.7.3
Abstract A palladium-catalyzedcross-coupling of benzyl trimethylammonium triflates and sulfonyl hydrazides for the synthesis of various benzyl sulfones is reported. This novel protocol shows widespread functional group tolerance, leading to the desired sulfones in moderate to excellent yields.
Development of Versatile Sulfone Electrophiles for Suzuki–Miyaura Cross-Coupling Reactions
作者:Masakazu Nambo、Eric C. Keske、Jason P. G. Rygus、Jacky C.-H. Yim、Cathleen M. Crudden
DOI:10.1021/acscatal.6b03434
日期:2017.2.3
cross-coupling reactions is described. Introducing electron-withdrawing groups on the aryl ring of the sulfone facilitates the Pd-catalyzed activation of C–SO2 bonds. Cross-coupling reactions with fluorinated sulfone electrophiles are reported, leading to a variety of multiply arylated products in good yields. The reactivity of this unusual electrophile is benchmarked versus common electrophiles and its use in
Base-controlled divergent synthesis of vinyl sulfones from (benzylsulfonyl)benzenes and paraformaldehyde
作者:Fuhong Xiao、Yangling Hu、Huawen Huang、Fen Xu、Guo-Jun Deng
DOI:10.1039/d0ob00362j
日期:——
A tuneable metal-free protocol for the selective preparation of α-substituted vinyl sulfone and (E)-vinyl sulfone derivatives has been described. The base played an important role in the selectivity control of transformation.
Cobalt‐Catalyzed Redox‐Neutral Sulfonylative Coupling from (Hetero)aryl Boronic Acids, Ammonium Salts and Potassium Metabisulfite
作者:Yingying Zhang、Haibo Zhu、Qiangwen Fan、Liu Yang、Zongbo Xie、Zhang‐Gao Le
DOI:10.1002/cctc.202101716
日期:2022.2.8
redox-neutral sulfonylative coupling of boronic acids and ammonium salts to afford (hetero)aryl alkyl sulfones by using potassium metabisulfite has been realized. Various functional sulfones were obtained by using commercially available and air-stable CoCl2 in combination with phenanthroline ligand. In addition, various carbon based electrophiles, including diaryliodoniumsalts, heteroaryl halides, and