Metal-Free Synthesis of Diaryl Sulfones from Arylsulfinic Acid Salts and Diaryliodonium Salts
作者:Natalie Umierski、Georg Manolikakes
DOI:10.1021/ol303248h
日期:2013.1.4
An efficient, high-yielding, and transition-metal-free synthesis of diaryl sulfones from arylsulfinic acid salts and diaryliodonium salts has been developed. The mild reaction conditions tolerate a range of functional groups, and unsymmetrical diaryliodonium salts show high chemoselectivity.
Selective Synthesis of <i>ortho-</i>Substituted Diarylsulfones by Using NHC-Au Catalysts under Mild Conditions
作者:Haibo Zhu、Yajing Shen、Daheng Wen、Zhang-Gao Le、Tao Tu
DOI:10.1021/acs.orglett.8b03957
日期:2019.2.15
A single-step gold(I)-catalyzed chemoselective protocol to access ortho-substituted diarylsulfones has been established. Acenaphthoimidazolylidene gold complexes are effective catalysts for the arylsulfonylation of boronic acids by potassium metabisulfite (K2S2O5) and diaryliodonium salts to access (poly-)ortho-substituted diarylsulfones even in gram scale. Unlike the transition metal-catalyzed two-component
已经建立了一步金(I)催化的化学选择方案以访问邻位取代的二芳基砜。ena啶咪唑基亚金络合物是焦亚硫酸氢钾(K 2 S 2 O 5)和二芳基碘鎓盐对硼酸进行芳基磺酰化的有效催化剂,即使以克为单位,也可得到(多)邻位取代的二芳基砜。与过渡金属催化的双组分偶联系统不同,二芳基碘鎓盐中的位阻芳基优先转移到体积较小的芳基上,以形成合成困难的靶标,包括具有药学重要性的靶标。
Facile Synthesis of Diaryl Sulfones through Arylsulfonylation of Arynes and Thiosulfonates
作者:Zhihua Cai、Lin He、Yating Zheng、Delin Tang、Pei Xie、Jinyun Luo
DOI:10.1055/a-2004-1006
日期:2023.4
transition-metal-free arylsulfonylation reaction of arynes has been developed. Arynes generated in situ from 2-(trimethylsilyl)aryl triflates undergo nucleophilic addition with thiosulfonates to produce diarylsulfones in 41–99% yield. The reaction can be scaled easily to gram-scale with the high yield maintained. Finally, mechanistic experiments showed that acetonitrile acted as a proton source.
Arylation of Lithium Sulfinates with Diaryliodonium Salts: A Direct and Versatile Access to Arylsulfones
作者:Natalie Umierski、Georg Manolikakes
DOI:10.1021/ol402235v
日期:2013.10.4
An efficient, transition-metal-free arylation of lithium sulfinates, which are readily accessible from reactions of organolithium reagents with sulfur dioxide, is described. Based on this method, a practical protocol for the direct transformation of (hetero)arenes and (hetero)aromatic halides into diarylsulfones was developed.