Acid-Promoted Cyclization of α-Azidobenzyl Ketones through C═ N Bond Formation: Synthesis of 6-Substituted Quinoline Derivatives

JY Zheng, Y Luo, TT Ou, XJ Zhang, YQ Lao… - Organic …, 2024 - ACS Publications
An acid-promoted cyclization of α-azidobenzyl ketones has been developed for the
synthesis of 6-substituted quinoline derivatives. A variety of synthetically useful 6-OTf or …

Formal [4+2] Cycloaddition of oAza‐Quinone Methide for the Synthesis of 1,4‐Heterocycle‐Fused Quinolines

SJ Gharpure, SK Nanda… - Advanced Synthesis & …, 2021 - Wiley Online Library
A protocol involving intramolecular formal [4+ 2]‐cycloaddition of in situ generated o‐aza‐
quinone methide for the facile synthesis of 1, 4‐heterocycle‐fused quinoline motifs is …

Acid/base-co-catalyzed cyclization of ketones with o-amino-benzylamines: Direct synthesis of quinoline compounds

X Zhang, J Chen, S Yong, Y Zhao - Tetrahedron Letters, 2023 - Elsevier
A novel acid/base-co-catalyzed tandem cyclization of various ketones with o-amino-
benzylamines employing molecular oxygen as the clean oxidant has been described. The …

Concise Synthesis of 4‐Arylquinolines via Intramolecular Cyclization of Allylamines and Ketones

WT Wei, YJ Cheng, Y Hu, YY Chen… - Advanced Synthesis …, 2015 - Wiley Online Library
The intramolecular cyclization of allylamines and ketones was achieved in the presence of
potassium tert‐butoxide and N, N‐dimethylformamide. A series of 4‐arylquinolines was …

Synthesis of highly substituted quinolines via a tandem ynamide benzannulation/iodocyclization strategy

TP Willumstad, PD Boudreau… - The Journal of Organic …, 2015 - ACS Publications
A two-stage “tandem strategy” for the regiocontrolled synthesis of very highly substituted
quinolines is described. Benzannulation based on the reaction of cyclobutenones or diazo …

An efficient route for the construction of cyclopenta [b] quinoline derivatives via intramolecular cyclopropanation

H Huang, W Hu - Tetrahedron, 2007 - Elsevier
A one-pot process to introduce diazoacetoacetate functionality into quinoline was identified
with excellent yield and regioselectivity. An intramolecular cyclopropanation of the resulting …

Regioselective synthesis of 3-bromoquinoline derivatives and diastereoselective synthesis of tetrahydroquinolines via acid-promoted rearrangement of arylmethyl …

J Tummatorn, P Poonsilp, P Nimnual… - The Journal of …, 2015 - ACS Publications
Regioselective synthesis of 3-bromoquinoline derivatives was achieved via a formal [4+ 2]-
cycloaddition between N-aryliminium ion, generated from arylmethyl azides, and 1 …

Cu2O-Promoted cascade reaction of O-halobenzoate and enaminones for the synthesis of isoquinolinone derivatives

Y Liang, R Wang - Tetrahedron Letters, 2023 - Elsevier
A practical Cu-catalyzed cascade cyclization of o-halobenzoate with enaminones to
construct isoquinolinone derivatives is described. The process involves a Cu-catalyzed …

Facile synthesis of tricyclic oxazino-or oxazepino-fused tetrahydroquinolines via intramolecular reductive amidation

S Mondal, A Maity, S Naskar, R Paira, A Hazra… - …, 2011 - thieme-connect.com
Abstract Reductive cyclization of ω-(8-quinolyloxy) alkyl esters by zinc in acetic acid is
shown to constitute a convenient methodology for the synthesis of oxazino-or oxazepino …

A method for the synthesis of substituted quinolines via electrophilic cyclization of 1-azido-2-(2-propynyl) benzene

Z Huo, ID Gridnev, Y Yamamoto - The Journal of Organic …, 2010 - ACS Publications
A new and efficient strategy for the synthesis of substituted quinolines via electrophilic
cyclization is developed. The intramolecular cyclization of 1-azido-2-(2-propynyl) benzene 1 …