Palladium-Catalyzed Multi-Component Reactions of<i>N</i>-Tosylhydrazones, 2-Iodoanilines and CO<sub>2</sub>towards 4-Aryl-2-Quinolinones
作者:Song Sun、Wei-Ming Hu、Ning Gu、Jiang Cheng
DOI:10.1002/chem.201604256
日期:2016.12.23
A palladium‐catalyzed three‐component reaction between N‐tosylhydrazones, 2‐iodoanilines and atmospheric pressure CO2 was developed whereby a tandem carbene migration insertion/lactamization strategy afforded 4‐aryl‐2‐quinolinones in moderate to good yields. Notably, a wide range of functional groups were tolerated in this procedure. This protocol features the simultaneous formation of four novel bonds;
Palladium-catalyzed arylation/cyclization/desulfonation cascades toward 4-aryl quinolin-2(1 H )-ones with diaryliodonium salts
作者:Jianwei Han、Xunshen Wu、Zhiang Zhang、Limin Wang
DOI:10.1016/j.tetlet.2017.07.065
日期:2017.8
Palladium-catalyzed cascades of arylation/cyclization/desulfonation of ortho-aminocinnamate esters by using diaryliodonium salts afforded a wide range of 4-aryl quinolin-2(1H)-ones. As such, the desired 4-aryl quinolin-2(1H)-ones with potential biological activity has been synthesized in the yields of 34–96%.
EtOS<sub>2</sub>K as a C1 Source: Solvent- and Temperature-Controlled Selective Synthesis of Quinoline-2-thione and Quinoline-2-one Derivatives
作者:Yue Zhang、Yu-Jie Chen、Xiao-Dong Yue、Yu-Lian Zhang、Jin-Hong Jia、Ming Li、Xi-Cun Wang
DOI:10.1021/acs.orglett.4c00561
日期:2024.3.8
Herein, we disclosed a highly chemoselective synthesis of quinoline-2-one and quinoline-2-thione derivatives using EtOS2K as the C1 source. Quinoline-2-one derivatives were synthesized selectively with NaCl as a catalyst in the solvent DMSO/H2O, while quinoline-2-thione derivatives were produced without the need for any catalyst in an environmentally friendly solvent EtOH/H2O. The reaction conditions