Ni-Catalyzed Reductive Liebeskind–Srogl Alkylation of Heterocycles
作者:Yuanhong Ma、Jose Cammarata、Josep Cornella
DOI:10.1021/jacs.8b13534
日期:2019.2.6
Herein we present a Ni-catalyzed alkylation of C–SMe with alkyl bromides for the decoration of heterocyclic frameworks. The protocol, reminiscent to the Liebeskind–Srogl coupling, makes use of simple C(sp2)–SMe to be engaged in a reductive coupling. The reaction is suitable for a preponderance of highly valuable heterocyclic motifs. In addition to cyclic bromides, noncyclic alkyl bromides are well
在此,我们提出了用烷基溴对 C-SMe 进行 Ni 催化烷基化,用于装饰杂环骨架。该协议让人想起 Liebeskind-Srogl 耦合,利用简单的 C(sp2)-SMe 进行还原耦合。该反应适用于占优势的高价值杂环基序。除了环溴化物外,非环烷基溴化物也能很好地适应异构化的保留水平。该协议是可扩展的,并允许在存在其他功能化句柄的情况下进行正交耦合。
Heterocyclic compounds and methods of use thereof
申请人:Ambit Biosciences Corporation
公开号:US08952058B2
公开(公告)日:2015-02-10
Provided herein are heterocyclic compounds for treatment of CSF1R, FLT3, KIT, and/or PDGFRβ kinase mediated diseases. Also provided are pharmaceutical compositions comprising the compounds and methods of using the compounds and compositions.
Provided herein are heterocyclic compounds for treatment of CSF1R, FLT3, KIT, and/or PDGFRβ kinase mediated diseases. Also provided are pharmaceutical compositions comprising the compounds and methods of using the compounds and compositions.
The cross-coupling reaction of organoalane reagents with 2-methylthiobenzo[<i>d</i>]thiazoles<i>via</i>C–S bond cleavage catalyzed by nickel
作者:Xin Jiang、Hongliu Xiao、Xiaoying Jia、Jiaxia Pu、Lirong Han、Qinghan Li
DOI:10.1039/d3nj02026f
日期:——
2-methylthiobenzo[d]thiazoles with aryl and alkenylaluminum reagents. Various 2-(hetero)aryl and 2-alkenyl substituted benzo[d]thiazoles derivatives can be obtained with 31–94% isolated yields using 4 mol% NiCl2(dppf)/4 mol% 2,2′-bipyridine as the catalyst under mild reaction conditions. The couplingreaction can be carried out smoothly whether the electron donor group or electronwithdrawinggroup is on the aromatic
通过镍催化 2-甲硫基苯并[ d ]噻唑与芳基和烯基铝试剂的交叉偶联,开发了一种高效且简单的合成 2-取代苯并[ d ]噻唑的路线。使用 4 mol% NiCl 2 (dppf)/4 mol% 2,2'-联吡啶作为催化剂,可以得到各种 2-(杂)芳基和 2-烯基取代的苯并[ d ]噻唑衍生物,分离产率为 31-94%在温和的反应条件下。无论给电子基团或吸电子基团在有机铝试剂的芳香环上还是2-甲硫基苯并[ d]上,偶联反应都能顺利进行。]噻唑衍生物。此外,广泛的底物范围和典型的克级高效维持使该方案成为合成 2-取代苯并[d ]噻唑衍生物的潜在实用方法。根据实验结果,提出了一种可能的催化循环。