[EN] A PROCESS FOR THE SYNTHESIS OF ARYL SULFONES<br/>[FR] PROCÉDÉ DE SYNTHÈSE D'ARYLE SULFONES
申请人:COUNCIL SCIENT IND RES
公开号:WO2015087352A1
公开(公告)日:2015-06-18
The present patent discloses a novel, efficient and transition-metal-free room temperature single step process for synthesis of aryl sulfones and substituted aryl sulfones starting from aryl substrates.
Transition-Metal-Free C–S Bond Formation: A Facile Access to Aryl Sulfones from Sodium Sulfinates via Arynes
作者:Virat G. Pandya、Santosh B. Mhaske
DOI:10.1021/ol5018646
日期:2014.7.18
Sulfones have been attractive targets for synthetic organic chemists owing to their immense applications in medicinal, material, and synthetic chemistry. In this context, an efficient transition-metal-free process has been demonstrated, wherein a broad range of alkyl/aryl/heteroaryl sodium sulfinates react with varyingly substituted aryne precursors (o-silyl aryl triflates) under mild reaction conditions
The invention relates to substituted phenylacetic acids as useful pharmaceutical compounds for treating respiratory disorders, pharmaceutical compositions containing them, and processes for their preparation.
本发明涉及取代苯乙酸作为治疗呼吸系统疾病的有用药物化合物、含有它们的药物组合物以及它们的制备方法。
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.
with sulfonylchlorides has been established via Suzuki-type radical cross-coupling. This approach allows for the synthesis of more than 50 sulfone examples enabled by photoredox catalysis under visible light radiation. Moreover, the title reaction is applied in late-stage functionalization of bioactive molecules, and further transformation of the resulting sulfones into 2-functionalized sulfones, borates