Micropores Induced Stereoselective Synthesis of E‐imines: Synergistic Effect between Cerium Species and Micropores in CeAlPO‐5 Molecular Sieves
作者:Yangxin Jin、Yali Cao、Guoyong Fang、Fei Ruan、Qingping Ke
DOI:10.1002/cctc.201900494
日期:2019.7.18
(HP‐CeAlPO‐5) as the catalyst that can catalyze stereoselective synthesis of E‐imines through the reaction of alcohols with amines. Control reactions, DFT calculations and GC‐MS analyses demonstrated that the feature of the uniform “small” micropore in the HP‐CeAlPO‐5 catalyst play a key role in the stereoselective synthesis of E‐imines. In addition, the reaction tolerates a broad range of alcohols and amines
Application of a catalyst-free Domino Mannich/Friedel-Crafts alkylation reaction for the synthesis of novel tetrahydroquinolines of potential antitumor activity
作者:Juan-Carlos Castillo、Elizabeth Jiménez、Jaime Portilla、Braulio Insuasty、Jairo Quiroga、Rodolfo Moreno-Fuquen、Alan R. Kennedy、Rodrigo Abonia
DOI:10.1016/j.tet.2017.12.049
日期:2018.3
efficient method to construct diversely substituted 1,2,3,4-tetrahydroquinolines in good to excellent yields has been developed through a catalyst-free Domino Mannich and intramolecular Friedel-Crafts alkylation reactions of N-arylamines with paraformaldehyde and electron-rich olefins via the formation of N-aryl-N-alkylmethyleneiminium ions as the key intermediates to afford the target products. Nine of
[EN] MULTI-TARGETED HETEROCYCLIC COMPOUNDS FOR THE TREATMENT OF NEURODEGENERATIVE DISEASES<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES MULTI-CIBLE POUR LE TRAITEMENT DE MALADIES NEURODÉGÉNÉRATIVES
申请人:UNIV PENNSYLVANIA
公开号:WO2018048969A1
公开(公告)日:2018-03-15
The present disclosure provides methods of treating neurodegenerative diseases, peripheral inflammatory conditions, cancers, or parasitic diseases in a subject, comprising administering to the subject a compound of Formula (I), (II), (III), and/or (IV):(I), (II), (III), (IV) or a pharmaceutically acceptable salt thereof, wherein X. R1-R8, R21-R28. R31-R38, and R41-R48 are as defined herein.
Asymmetric Synthesis of Indolines through Intramolecular Shifting of Aromatic Sulfinyl Groups. Role of the π,π-Stacking Interactions in these Unusual S<sub>N</sub>Ar Processes
作者:José L. García Ruano、Alejandro Parra、Vanesa Marcos、Carlos del Pozo、Silvia Catalán、Silvia Monteagudo、Santos Fustero、Ana Poveda
DOI:10.1021/ja8096527
日期:2009.7.8
Cyclization of N-aryl substituted 1-aryl-2[2-p-tolylsulfinyl]phenyl propylamines under LDA, LHMDS, or KHMDS provides a new approach for synthesizing optically pure 2,3-disubstituted indolines. Both the scope and the limitations of this method have been investigated. The pi,pi-stacking interactions are crucial for these unprecedented intramolecular S(N)Ar processes, in which a sulfinyl group located
Some azomethines including substituted benzylidene-4-chlorobenzenamines (E-imines) have been synthesized by fly-ash: PTS catalyzed microwave assisted condensation of 4-chloroaniline and substituted benzaldehydes under solvent-free conditions. The yield of the imines has been found to be more than 85%. The purity of all imines has been checked using their physical constants and UV, IR and NMR spectral data. These spectral data have been correlated with Hammett substituent constants and F and R parameters using single and multi-linear regression analysis. From the results of statistical analysis, the effect of substituents on the above spectral data has been studied. The antimicrobial activities of all imines have been studied using standard methods.