Synthesis of Aryl Trimethylstannanes from Aryl Amines: A Sandmeyer-Type Stannylation Reaction
作者:Di Qiu、He Meng、Liang Jin、Shuai Wang、Shengbo Tang、Xi Wang、Fanyang Mo、Yan Zhang、Jianbo Wang
DOI:10.1002/anie.201304579
日期:2013.10.25
Sandmeyer‐type stannylation: Stille coupling is one of the most powerful coupling reactions for CC bond formation, whereas there are only limited methods to access aryl stannane compounds. A mild stannylation process based on a Sandmeyer‐type transformation using aromatic amines as the starting materials is described. DCE: 1,2‐dichloroethane.
Synthesis of Trimethylstannyl Arylboronate Compounds by Sandmeyer-Type Transformations and Their Applications in Chemoselective Cross-Coupling Reactions
作者:Di Qiu、Shuai Wang、Shengbo Tang、He Meng、Liang Jin、Fanyang Mo、Yan Zhang、Jianbo Wang
DOI:10.1021/jo402618r
日期:2014.3.7
A synthetic method based on Sandmeyer-type reactions to access both tin- and boron-substituted arenes from nitroaniline derivatives is described. This transformation can be applied to the synthesis of a series of functionalized trimethylstannyl arylboronates. In addition, the chemoselectivereaction of the Stille and Suzuki–Miyaura cross-couplingreactions is explored, and a series of m- and p-terphenyl
Heterogeneous Titania-Photoredox/Nickel Dual Catalysis: Decarboxylative Cross-Coupling of Carboxylic Acids with Aryl Iodides
作者:Christopher D. McTiernan、Xavier Leblanc、Juan C. Scaiano
DOI:10.1021/acscatal.6b03687
日期:2017.3.3
The efficient, mild, and semiheterogeneous decarboxylative cross-coupling of a variety alkyl carboxylic acids with aryliodides has been accomplished through a merger of TiO2 photoredox and nickel cross-coupling chemistries. The protocol is tolerant to a wide range of substituted aryliodides and alkyl carboxylic acids. Through replacement of the commonly employed Ir transition-metal complexes with
各种烷基羧酸与芳基碘化物的高效,温和和半均质的脱羧交叉偶联已经通过TiO 2光还原和镍交叉偶联化学的结合来实现。该方案可耐受多种取代的芳基碘化物和烷基羧酸。通过用P25 TiO 2作为光催化剂代替常用的Ir过渡金属配合物,我们表明这些转变可以被异质化,而对这些转变的效率几乎没有影响,同时由于可重复使用性和可回收性而降低了相关成本。 TiO 2光催化剂的廉价性质。
<i>para</i>-Selective arylation and alkenylation of monosubstituted arenes using thianthrene <i>S</i>-oxide as a transient mediator
作者:Xiao-Yue Chen、Xiao-Xue Nie、Yichen Wu、Peng Wang
DOI:10.1039/d0cc00641f
日期:——
Using thianthrene S-oxide (TTSO) as a transient mediator, para-arylation and alkenylation of mono-substituted arenes have been demonstrated via a para-selective thianthrenation/Pd-catalyzed thio-Suzuki-Miyaura coupling sequence under mild conditions. This reaction features a broad substrate scope, and functional group and heterocycle tolerance. The versatility of this approach was further demonstrated