Synthesis of 6-trifluoromethylindolo[1,2-c]quinazolines and related heterocycles using N-(2-iodophenyl)trifluoroacetimidoyl chlorides as starting material via C–H bond functionalization
A mild, two-step reaction for the synthesis of 6-trifluoromethylindolo[1,2-c]quinazolines from readily available indoles and N-(2-iodophenyl)trifluoroacetimidoyl chlorides via addition-elimination/arylation is described. An array of aza-fused trifluoromethylated heterocycles can be easily assembled via Friedel-Crafts reaction/C-H bond activation by this methodology.
A Novel Method for the Synthesis of 2-Trifluoromethylindoles from N-(o-Haloaryl)alkynylimines
作者:Yongming Wu、Yuefa Gong、Zixian Chen、Jiangtao Zhu、Haibo Xie、Shan Li
DOI:10.1055/s-0029-1219904
日期:2010.6
Treatment of various types of N-(o-haloaryl)-alkynylimines in the presence of Pd(PPh3)2Cl2 gave 2-trifluoromethylindoles in high yields. This approach provides a novel and facile access to the biologically important fluorine-containing indole derivatives.
Copper(I)-Catalyzed Synthesis of Novel 4-(Trifluoromethyl)-[1,2,3]triazolo[1,5-a]quinoxalines via Cascade Reactions of N-(o-Haloaryl)alkynylimine with Sodium Azide
作者:Zixian Chen、Jiangtao Zhu、Haibo Xie、Shan Li、Yongming Wu、Yuefa Gong
DOI:10.1002/adsc.200900875
日期:——
Novel tricyclic 4‐(trifluoromethyl)‐[1,2,3]triazolo[1,5‐a]quinoxalines were readily prepared from N‐(o‐haloaryl)alkynylimines and sodium azide via copper(I)‐catalyzedtandem reactions. This synthetic strategy provides an efficient way to access a library of novel heterocyclic compounds that are of interest in drug discovery.
新型三环4-(三氟甲基)-[1,2,3]三唑并[1,5- a ]喹喔啉可通过铜(I)催化的串联反应由N-(邻-卤代芳基)炔基亚胺和叠氮化钠制得。这种合成策略提供了一种有效的方法来访问在药物开发中感兴趣的新型杂环化合物的库。
[4 + 1 + 1] Tandem Cyclization Reaction Involving Isocyanides: Access to 2-(Trifluoromethyl)quinazolin-4(3<i>H</i>)-imines
作者:Shen Ge、Yi-Ming Zhu、Xiao-Ping Xu、Shun-Jun Ji
DOI:10.1021/acs.joc.1c03008
日期:2022.3.4
A palladium-catalyzed three-component reaction of isocyanides, 2,2,2-trifluoro-N-(2-iodophenyl)acetimidoyl chlorides, and amines for the one-pot synthesis of 2-(trifluoromethyl)quinazolin-4(3H)-imines was described. The protocol features a wide substrate scope, high efficiency, and readily available raw materials.