直接从相应的二芳基酮亚胺12和二氯甲苯13直接合成简单的一系列新的六芳基二氮杂三烯5(“腈基内酯二聚体”)。通过改变邻近卡宾中心的芳环上的取代基来研究腈基的卡宾特性。相应的卡宾二聚体是稳定的结晶材料,其吸收最大值(λmax)在363至422 nm之间,这被证明是由于不存在强烈的吸电子取代基而促进的。晶体结构表明当在卡宾碳上存在苯基,3-甲基苯基和3-氯苯基取代基时,E-异构体被分离。这当存在空间上更受阻的2,4,6-三甲基苯基取代基(Mes)时,将Z异构体分离出来。E-异构体的1 H NMR光谱证明了芳环的不等价性,其中亚胺部分的两个芳环是伪轴的,其余的芳环是伪赤道的。反应通过由中间体氯亚胺14的碱促进的1,1-消除HCl生成的中间体腈基1进行。腈基叶立德也是通过从亚氨酰氯18中的1,3-消除HCl生成的,确认了通过腈基叶酸的共同途径,因为从这些不同途径获得的二聚体产物是相同的。强吸电子的
Selective catalytic Hofmann N-alkylation of poor nucleophilic amines and amides with catalytic amounts of alkyl halides
作者:Qing Xu、Huamei Xie、Er-Lei Zhang、Xiantao Ma、Jianhui Chen、Xiao-Chun Yu、Huan Li
DOI:10.1039/c6gc00938g
日期:——
A selective Hofmann N-alkylation reaction of amines/amides catalytic in alkylhalides is achieved by using alcohols as the alkylating reagents, affording mono- or di-alkylated amines/amides in high selectivities.
Direct oxidative amidation of aldehydes with amines catalyzed by heteropolyanion-based ionic liquids under solvent-free conditions via a dual-catalysis process
A simple and efficient procedure for the synthesis of amides directly from aldehydes and amines catalyzed by heteropolyanion-based ionic liquids undersolvent-freeconditions has been reported. The practical protocol was found to tolerate a wide range of substrates with different functional groups. Moderate to excellent yields, solvent-free media, and operational simplicity are the main highlights
A Lewis Acid Palladium(II)-Catalyzed Three-Component Synthesis of α-Substituted Amides
作者:Tamara Beisel、Georg Manolikakes
DOI:10.1021/ol402949t
日期:2013.12.6
A Lewis acid palladium-catalyzed reaction of amides, aryl aldehydes, and arylboronic acids is described. This new method allows for a practical and generalsynthesis of α-substituted amides from simple, readily available building blocks.
A One-Pot tandem Schmidt–Ritter process for the synthesis of amides has been developed using the super acid as catalyst. The in situ generated aryl/aliphatic nitriles from the reaction of aldehydes and sodium azide in the presence of TfOH and AcOH (Schmidt reaction) react with suitable alcohol (Ritter reaction) to give the amides. For the first time we observed that during the Schmidt process N-acylimides
[EN] SERINE BIOSYNTHETIC PATHWAY INHIBITORS<br/>[FR] INHIBITEURS DE LA VOIE DE BIOSYNTHÈSE DE LA SÉRINE
申请人:UNIV CATHOLIQUE LOUVAIN
公开号:WO2017157882A1
公开(公告)日:2017-09-21
The present invention relates to a compound of formula (I), a stereoisomer thereof, an enantiomer thereof, a racemic thereof, or a tautomer thereof as defined in claim 1 (I) the present invention also relates to a compound of formula (I), a stereoisomer thereof, an 5 enantiomer thereof, a racemic thereof, or a tautomer thereof, as defined in the claims for use as a medicament, in particular for use in the prevention or treatment of a cellular proliferative disease.