作者:María Jesús Cabrera-Afonso、Zhi-Peng Lu、Christopher B. Kelly、Simon B. Lang、Ryan Dykstra、Osvaldo Gutierrez、Gary A. Molander
DOI:10.1039/c7sc05402e
日期:——
employed to prepare sulfones with biological relevance (e.g., in bioconjugation, drug substance synthesis, etc.) as demonstrated in the synthesis of drug-like compounds or their precursors. When paired with existing Ni/photoredox chemistry for Csp3–Csp2 cross-coupling, an array of diverse sulfone scaffolds can be readily assembled from bifunctional electrophiles. A mechanistic manifold consistent with
该报告详细介绍了通过镍/光氧化还原双重催化构建芳基和杂芳基砜的策略的开发和实施。使用芳基亚磺酸盐,可以在室温、无碱条件下形成C-S键。一系列芳基卤化物和杂芳基卤化物与该方法兼容。所描述的反应的广泛耐受性和温和性质可以潜在地用于制备具有生物相关性的砜(例如,在生物共轭、药物物质合成等中),如在药物样化合物或其前体的合成中所证明的。当与现有的用于 C sp 3 –C sp 2交叉偶联的 Ni/光氧化还原化学配对时,可以很容易地从双功能亲电子试剂组装一系列不同的砜支架。提出了与实验和计算数据一致的机械流形。
[EN] USE OF NICKEL/KETONE DUAL-CATALYSIS SYSTEM IN CROSS-COUPLING REACTION OF ARYL HALIDE AND SODIUM ARYLSULFINATE<br/>[FR] UTILISATION D'UN SYSTÈME DE DOUBLE CATALYSE NICKEL/CÉTONE DANS UNE RÉACTION DE COUPLAGE CROISÉ D'HALOGÉNURE D'ARYLE ET D'ARYLSULFINATE DE SODIUM<br/>[ZH] 镍 / 酮双催化体系在卤代芳烃与芳基亚磺酸钠交叉偶联反应中的应用
Hantzsch Ester as a Visible‐Light Photoredox Catalyst for Transition‐Metal‐Free Coupling of Arylhalides and Arylsulfinates
作者:Da‐Liang Zhu、Qi Wu、Hai‐Yan Li、Hong‐Xi Li、Jian‐Ping Lang
DOI:10.1002/chem.201905281
日期:2020.3.18
(HEH) has been utilized as a visible-light photoredox catalyst for the cross coupling of arylhalides and arylsulfinates without transition metal, sacrificial agent, and mediator. This method is compatible with various functional groups and provides diarylsulfones in good to high yields. Mechanistic studies indicate that this reaction undergoes the stepwise light irradiation of HE- , single electron