Investigation of amination in 4-chloro-2-phenylquinoline derivatives with amide solvents
摘要:
Novel 4-amino-2-phenylquinoline derivatives were synthesized by reacting various 4-chloro-2-aryl-quinoline compounds having activated chloro group with the corresponding imide solvents at reflux for overnight. The activity of amination by the amide solvents depended on the competition between the steric and electronic effect of the N-substituents on the amino group. Their activities were shown as N,N-dimethylformamide>N,N-diethylformamide>N-methylformamide>formamide>N,N-dimethylacetamide> N,N-dimethylpropionamide. The yields for the amination products seemed proportional to the ease of the dissociation of the amides. (C) 2008 Published by Elsevier Ltd.
Palladium Catalyzed Hydrodefluorination of Fluoro-(hetero)arenes
作者:Joseph J. Gair、Ronald L. Grey、Simon Giroux、Michael A. Brodney
DOI:10.1021/acs.orglett.9b00889
日期:2019.4.5
of fluorine incorporation around metabolic hotspots, the corresponding deuterodefluorination reaction may prove useful for converting fluorinated libraries to deuterated analogues to suppress the oxidative metabolism by kineticisotopeeffects.
From Ketones, Amines, and Carbon Monoxide to 4-Quinolones: Palladium-Catalyzed Oxidative Carbonylation
作者:Jiwei Wu、Yuchen Zhou、Ting Wu、Yi Zhou、Chien-Wei Chiang、Aiwen Lei
DOI:10.1021/acs.orglett.7b03337
日期:2017.12.1
A novel method of palladium-catalyzed oxidative carbonylation of ketones, amines, and carbon monoxide for the synthesis of 4-quinolones has been developed. This protocol provides a straightforward route to construct useful 4-quinolone derivatives from inexpensive chemicals.
[EN] MACROCYCLIC INHIBITORS OF HEPATITIS C PROTEASE<br/>[FR] INHIBITEURS MACROCYCLIQUES DE LA PROTÉASE DU VIRUS DE L'HÉPATITE C
申请人:PHENOMIX CORP
公开号:WO2010033466A1
公开(公告)日:2010-03-25
The invention provides macrocyclic compounds inhibitory to the Hepatitis C viral protease, compositions and combinations including the compounds, methods of treatment of conditions wherein inhibition of the Hepatitis C viral protease is medically indicated, and methods of treatment of a Hepatitis C viral infection in a human patient.
palladium supported on graphitic carbon nitride (Pd/g-CN) catalyzed carbonylative cyclization of 2-bromonitrobenzenes and alkynes has been developed for the expedite construction of quinolin-4(1)-one scaffolds. By using a low loading heterogeneous palladium catalyst, Mo(CO) as both the CO surrogate and the reductant, and nitroarenes as the nitrogen source, the reaction proceeded well to give a variety
Disclosed are compounds of the formula ##STR1## wherein: R.sup.1 and R.sub.2 may be either the same or different and each is hydrogen or lower alkyl; and wherein R.sup.3 and R.sup.4 may be either the same or different and each is hydrogen, halogen, or lower alkyl, with the proviso that R.sup.3 and R.sup.4 cannot both be hydrogen. These compounds are useful as anticonvulsant or anxiolytic agents.