Visible-light-driven electron donor–acceptor complex induced sulfonylation of diazonium salts with sulfinates
作者:Xin Liang、Yufei Li、Qing Xia、Lan Cheng、Jianbo Guo、Pei Zhang、Weihua Zhang、Qingmin Wang
DOI:10.1039/d1gc03239a
日期:——
work reports an efficient sulfonylation reaction enabled by a visible-light-induced radical coupling reaction between phenyl/heterocyclic diazoniumsalts and sulfinates. Mechanistic experiments disclosed the formation of a versatile electron donor–acceptor (EDA) complex. This transformation is characterized by an easy operational procedure under mild conditions which avoids transition metals, ligands,
Hydroxybenzophenone-based stabilizers and polymers end-capped with the same
申请人:SOLVAY SPECIALTY POLYMERS USA, LLC
公开号:US20170240723A1
公开(公告)日:2017-08-24
The invention relates to hydroxybenzophenone-based compounds of formula (I) that are used to improve UV, thermal, and thereto-oxidative stability of high performance aromatic polymers in a blend or as end-cappers of the same polymers.
photocatalyst-free electrondonor–acceptor (EDA) complex photochemistry was deemed to expand the potential of photodriven radical chemistry. Here, we report a cross-coupling reaction of thianthrenium salt functionalized arenes and sodium sulfinates via a photopromoted single electron transfer (SET) process of an EDA complex. A series of biarylsulfones were obtained with high site-selectivity and reactivity. This
无光催化剂的电子供体-受体 (EDA) 复合光化学被认为扩大了光驱动自由基化学的潜力。在这里,我们通过 EDA 复合物的光促进单电子转移 (SET) 过程报告了噻蒽盐功能化芳烃和亚磺酸钠的交叉偶联反应。获得了一系列具有高位点选择性和反应活性的联芳基砜。这种温和实用的自由基反应可以应用于具有生物活性和 DNA 编码的分子。
Acylation or sulphonylation of aromatic compounds
申请人:ZENECA LIMITED
公开号:EP0455332A2
公开(公告)日:1991-11-06
Acylation or sulphonylation of aromatic compounds, one of which is selected from aromatic carboxylic and sulphonic acids and esters and anhydrides thereof, using an aluminosilicate catalyst having acidic sites.