acylation of quinolines and isoquinolines is described by use of arylmethanols as the acylating agents through a C–C bondformation via an oxidative cross-dehydrogenativecoupling (CDC) strategy. This C-aroylation reaction was carried out by use of K2S2O8 as oxidant and methyltrioctylammonium chloride (Aliquat 336) as a transfer agent in MeCN at 80 °C under transition-metal-free conditions.
Synthesis of quinolinyl and isoquinolinyl phenyl ketones as novel agonists for the cannabinoid CB2 receptor
作者:Bastien Reux、Tapio Nevalainen、Katri H. Raitio、Ari M.P. Koskinen
DOI:10.1016/j.bmc.2009.05.013
日期:2009.7
A series of quinolinyl and isoquinolinyl phenylketones was synthesized and their CB2 receptor-dependent G-protein activities were determined using the [35S]GTPγS binding assay. Both quinoline and isoquinoline derivatives exhibited similar CB2 receptor agonist activity, the most potent ligands being the 2-(Me2N)-phenyl substituted derivatives, which were also full agonists at the CB2-receptor.
Regiospecific Benzoylation of Electron-Deficient <i>N</i>-Heterocycles with Methylbenzenes via a Minisci-Type Reaction
作者:Wajid Ali、Ahalya Behera、Srimanta Guin、Bhisma K. Patel
DOI:10.1021/acs.joc.5b00501
日期:2015.6.5
coupling between electron-deficient N-heterocycles (isoquinoline, quinolines, and quinoxalines) and methylbenzenes leading to regiospecific C–aroylation has been accomplished using AlCl3 as the catalyst in the presence of oxidant TBHP. This protocol is a practical alternative to the classical Minisci reaction.
An efficient one-step synthesis of 2-acylquinolines using a copper-catalyzed tandem reaction of 2-ethynylanilines with glyoxals in the presence of piperidine has been developed. This new protocol successfully avoids multi-step operation and the use of highly toxic cyanides required in traditional methods, and provides a practical tool for synthetic and pharmaceutical chemists. Various 2-acylquinolines
A palladium-catalyzed ring-expansion reaction of cyclobutanols with 2-haloanilines leading to benzazepines and quinolines
作者:Xiao-Qin Shen、Xiao-Wei Yan、Xing-Guo Zhang
DOI:10.1039/d1cc04395a
日期:——
A general synthesis of 2-aryl benzazepines has been developed through palladium-catalyzed ring-expansion reactions of cyclobutanols with 2-haloanilines; the further oxidative rearrangement reaction of benzazepines provided an efficient synthesis of 2-acyl quinolines. These transformations feature the efficient construction of six- and seven-membered N-containing heterocycles from easily obtained materials