Divergent Synthesis of Quinolones and Dihydroepindolidiones via Cu(I)-Catalyzed Cyclization of Anilines with Alkynes
作者:Xuefeng Xu、Ruzhong Sun、Sheng Zhang、Xu Zhang、Wei Yi
DOI:10.1021/acs.orglett.8b00436
日期:2018.4.6
A unique and efficient method for one-pot synthesis of diverse 4-quinolones from simple and readily available primary anilines and alkynes viaCu(I)-catalyzed direct cyclization has been developed. The (thio)phenols were also found to visible substrates for this reaction. Moreover, an unprecedented synthesis of dihydroepindolidiones has been demonstrated by using secondary anilines as the versatile
Palladium-Catalyzed Decarboxylative Coupling of Quinolinone-3-Carboxylic Acids and Related Heterocyclic Carboxylic Acids with (Hetero)aryl Halides
作者:Samir Messaoudi、Jean-Daniel Brion、Mouad Alami
DOI:10.1021/ol300235k
日期:2012.3.16
An efficient and practical decarboxylative cross-coupling reaction of quinolin-4(1H)-one 3-carboxylic acids with (hetero)arylhalides has been established. Under a bimetallic system of PdBr2 and silver carbonate, the protocol proved to be general, and a variety of 3-(hetero)aryl 4-quinolinones and related heterocycles, such as 3-aryl-1,8-naphthyridin-4(1H)-ones, 3-arylcoumarins, 3-arylquinolin-2(1H)-ones
Synthesis of 2,3‐Dihydro‐4‐pyridones, 4‐Quinolones, and 2,3‐Dihydro‐4‐azocinones by Visible‐Light Photocatalytic Aerobic Dehydrogenation
作者:Adrian Sevenich、Paulina Sophie Mark、Torsten Behrendt、Jonathan Groß、Till Opatz
DOI:10.1002/ejoc.201900584
日期:2020.3.15
A protocol for the synthesis of three types of N‐heterocycles was developed. Cyclic enaminones were prepared under eco‐friendly conditions by photocatalyticdehydrogenation using rhodamine 6G as inexpensive photocatalyst and oxygen as the terminal oxidant. The method was extended to access azocinones by a [2+2] cycloaddition/ring‐expansion sequence in a one‐pot procedure.
Novel 1-aryl-3-quinolinecarboxamides and 1-aryl-3-isoquinolinecarboxamides, processes for the preparation thereof, and methods for treating pain and inflammation utilizing compounds and compositions thereof are disclosed.
Novel 1-aryl-3-quinolinecarboxamides and 1-aryl-3-isoquinolinecarboxamides, processes for the preparation thereof, and methods for treating pain and inflammation utilizing compounds and compositions thereof are disclosed.