Transition-Metal-Free Quinoline Synthesis from Acetophenones and Anthranils via Sequential One-Carbon Homologation/Conjugate Addition/Annulation Cascade
作者:Sandip Balasaheb Wakade、Dipak Kumar Tiwari、Pothapragada S. K. Prabhakar Ganesh、Mandalaparthi Phanindrudu、Pravin R. Likhar、Dharmendra Kumar Tiwari
DOI:10.1021/acs.orglett.7b02429
日期:2017.9.15
the construction of functionalized quinolines from readily available acetophenones and anthranils is reported. This one-pot reaction cascade involves in situ generation of α,β-unsaturated ketones from the acetophenone via one-carbon homologation by DMSO followed by the aza-Michael addition of anthranils and subsequent annulation. DMSO acted in this reaction not only as solvent but also as one carbon source
Herein, we disclose a mild and versatile nickel-catalyzed method for exclusive C3-selective thioetherification, alkylation, arylation, acylation, and phosphorylation of quinolines with a variety of electrophiles. Unactivated quinolines can be functionalized without directing groups at roomtemperature. Control experiments indicated that quinolines underwent 1,4-addition with nickel hydride species
Rongalite as C1 Synthon in the Synthesis of Divergent Pyridines and Quinolines
作者:Huan Gao、Liyun Zhou、Jie-Ping Wan、Yunyun Liu
DOI:10.1021/acs.joc.3c00428
日期:2023.6.2
Rongalite has been used as a cheap and efficient carbon synthon for the synthesis of divergent N-heteroaromatics, including different pyridines and quinolines. The selective synthesis of different products can be achieved by employing enaminones or enaminones/anilines as reaction partners. In addition, compared with the reaction using conventional aldehyde synthons, rongalite displays an evident advantage