132623-46-2Relevant academic research and scientific papers
Oxidative Coupling of 3-Oxindoles with Indoles and Arenes
Kang, Houng,Jemison, Adriana L.,Nigro, Erin,Kozlowski, Marisa C.
, p. 3144 - 3151 (2019/08/01)
A highly efficient method for the oxidative coupling of 2-substituted 3-oxindoles with aromatic compounds to form 2,2-disubstituted indolin-3-ones with broad scope is described. This work utilized oxygen as the terminal oxidant and a base-metal catalyst under mild conditions instead of toxic/precious-metal reagents and higher-molecular-weight oxidants. Quaternary structures were produced in modest-to-excellent yields (up to 96 %) without prefunctionalization.
Stereogenic: Cis -2-substituted- N -acetyl-3-hydroxy-indolines via ruthenium(ii)-catalyzed dynamic kinetic resolution-asymmetric transfer hydrogenation
Luo, Zhonghua,Sun, Guodong,Zhou, Zihong,Liu, Guozhu,Luan, Baolei,Lin, Yicao,Zhang, Lei,Wang, Zhongqing
supporting information, p. 13503 - 13506 (2018/12/12)
Ruthenium(ii)-catalyzed dynamic kinetic resolution-asymmetric transfer hydrogenation of racemic 2-substituted-N-acetyl-3-oxoindolines to cis-2-substituted-N-acetyl-3-hydroxyindolines is reported. Using the homochiral {Ru[TfDPEN](p-cymene)} catalyst with S/C = 400 in a HCO2H/Et3N mixture, up to >99.9% ee and >99:1 dr are obtained with high yields (79-98%). This method provides the first example of preparing enantiomerically pure indolines through asymmetric transfer hydrogenation (ATH).
Organocatalytic enantioselective amination of 2-substituted indolin-3-ones: A strategy for the synthesis of chiral α-hydrazino esters
Yarlagadda, Suresh,Ramesh,Ravikumar Reddy,Srinivas,Sridhar,Subba Reddy
supporting information, p. 170 - 173 (2017/11/27)
An efficient enantioselective α-amination of 2-substituted 3-indolinones has been achieved for the first time using hydroquinidine as a chiral catalyst through an aza-Michael reaction. The desired α-hydrazino esters are obtained in excellent yields with h
Organocatalytic asymmetric Michael-Michael cascade for the construction of highly functionalized N-fused piperidinoindoline derivatives
Zhao, Yong-Long,Wang, Yao,Cao, Jian,Liang, Yong-Min,Xu, Peng-Fei
supporting information, p. 2438 - 2441 (2014/05/20)
Application of indolin-3-one derivatives in a cascade reaction for efficient assembly of complex molecules is a much less explored research area. It is demonstrated that structurally interesting polysubstituted piperidino[1,2-a]indoline compounds containi
Synthesis and biological activities of novel aryl indole-2-carboxylic acid analogs as PPARγ partial agonists
Dropinski, James F.,Akiyama, Taro,Einstein, Monica,Habulihaz, Bahanu,Doebber, Tom,Berger, Joel P.,Meinke, Peter T.,Shi, Guo Q.
, p. 5035 - 5038 (2007/10/03)
A series of novel aryl indole-2-carboxylic acids has been identified as potent selective PPARγ modulators. Their chemical synthesis and in vitro activities are discussed. Compound 5 was selected for in vivo testing in the db/db mouse model of type 2 diabetes and resulted in reduction of hyperglycemia at comparable plasma exposure when compared to rosiglitazone.
