Palladium-Catalyzed/Copper-Mediated Desulfurization and Arylation of Quinoline-2-(1H)-thione for Rapid Access to Quinoline Derivatives
作者:Hai-Long Lu、Fu-Hu Guo、Tong-Lin Wang、Xi-Cun Wang、Zheng-Jun Quan
DOI:10.1055/s-0039-1690765
日期:2020.3
An efficient method for carbon–carbonbond formation is described. The process employs the palladium-catalyzed and copper-mediated cross-coupling of quinoline-2-(1H)-thiones with arylboronic acids or alkynes through C–S bondcleavage without an inert atmosphere. The method provides rapid and general access to a diverse range of 2-substituted quinolines in a single step from a wide range of quinoline-2-(1H)-thiones
Transition-Metal-Free Desulfinative Cross-Coupling of Heteroaryl Sulfinates with Grignard Reagents
作者:Jun Wei、Huamin Liang、Chuanfa Ni、Rong Sheng、Jinbo Hu
DOI:10.1021/acs.orglett.8b03918
日期:2019.2.15
A mild cross-coupling reaction of heteroaryl sulfinates with Grignardreagents has been developed under transition-metal-free conditions. This study provides an example of the SO22– as a leaving group in an aromatic system and an effective methodology for the construction of C–C bond.
Base-catalyzed thio-lactamization of 2-(1-arylvinyl)anilines with CS<sub>2</sub> for the synthesis of quinoline-2-thiones
作者:Tong-Lin Wang、Xiao-Jun Liu、Cong-De Huo、Xi-Cun Wang、Zheng-Jun Quan
DOI:10.1039/c7cc07633a
日期:——
that the base-catalyzed thio-lactamization of 2-(1-arylvinyl)anilines with CS2 is a powerful methodology to synthesize quinoline-2-thiones. This thio-lactamization uses inexpensive and versatile 2-(1-arylvinyl)anilines, which are easily available from the reaction of amines and alkynes. Compared to the known strategy in the literature, this method features the advantages like a short synthesis step and
Iodine-Promoted Synthesis of 4-Aryl-2-(arylsulfonyl)quinolones by Desulfurative C–S Cross-Coupling Reaction of Quinoline-2-thiones with Sodium Sulfinates
作者:Zheng-Jun Quan、Guo-Chao Yang、Xi-Chun Wang
DOI:10.1055/s-0040-1706868
日期:2020.9
iodine-induced sulfonylation of quinoline-2-thiones with sodium arenesulfinates as sulfur sources for the synthesis of 4-aryl-2-(arylsulfonyl)quinoline derivatives is described. The 4-aryl-2-(arylsulfonyl)quinoline derivatives can be obtained in a moderate to good yields. This C–S bond cleavage and C–Scross-coupling proceeds in the absence of a metal under inexpensive and nontoxic conditions and it displays a
The solvent-controlled chemoselective construction of C–S/S–S bonds <i>via</i> the Michael reaction/thiol coupling of quinoline-2-thiones
作者:Xi Zhang、Tong-Lin Wang、Xiao-Jun Liu、Xi-Cun Wang、Zheng-Jun Quan
DOI:10.1039/c8ob02971g
日期:——
K2CO3-catalyzed thio-Michael addition using quinoline-2-thiones and α,β-unsaturatedcarbonylcompounds was used to assess the chemoselective construction of C–S and S–S bonds under mild reaction conditions in different solvents. The C–S bond showed a better chemoselective construction in EtOH whereas the S–S bond showed a better chemoselective construction in 1,4-dioxane. The corresponding products, generated
使用喹啉-2-硫酮和α,β-不饱和羰基化合物在K 2 CO 3催化下的硫代迈克尔基加成反应,用于评估在不同溶剂中温和反应条件下CS和SS键的化学选择性结构。C–S键在EtOH中显示出更好的化学选择性结构,而S–S键在1,4-二恶烷中显示出更好的化学选择性结构。反应产生的相应产物具有显着的溶剂控制作用。