[EN] ESTER DERIVATIVES OF (PYRIDINYLOXY-PHENYL)-METHANOL AND PROCESS OF PREPARATION THEREOF [FR] DERIVES ESTERS DE (PYRIDINYLOXY-PHENYL)-METHANOL ET LEUR PROCEDE DE PREPARATION
Oxidative Deoximation with Catalytic Sodium Tungstate
摘要:
A simple and mild method of oxidative deoximation based on catalytic amount of sodium tungstate is described. This method is effective for deprotection of ketones and aldehydes.
An ecofriendlygreen approach for synthesis of substituted pyrano[2,3-c]pyrazoles has been developed via a multicomponent one pot approach in aqueous ethanol medium under totally non-catalytic conditions. The synthesized compounds were evaluated for their antibacterial, anti-inflammatory and cytotoxic activities.
通过在完全非催化条件下在乙醇水溶液中的多组分一锅法开发了一种环保的绿色方法,用于合成取代的吡喃并[2,3- c ]吡唑。评价合成的化合物的抗菌,抗炎和细胞毒性活性。
Design, diversity-oriented synthesis and structure activity relationship studies of quinolinyl heterocycles as antimycobacterial agents
heterocyclic frameworks thus obtained were evaluated for their antimycobacterialactivity. The active scaffolds were further explored by a parallel library generation in order to establish SAR. Further, low cytotoxicity against A549 cell line enhances the potential of the synthesized molecules as promising antimycobacterial agents.
A series of 5-(alkyl(1H-indol-3-yl))-2-(substituted)-1,3,4-oxadiazoles were efficiently synthesized by oxidative cyclisation of N′-benzylidene-(1H-indol-3-yl)alkane hydrazides using di(acetoxy)iodobenzene. N′-Benzylidene-(1H-indol-3-yl)alkane hydrazides themselves were derived from simple indole-3-carboxylic acids. The 5-(alkyl(1H-indol-3-yl))-2-(substituted)-1,3,4-oxadiazoles were evaluated for their
efficient one-pot, three-component, green approaches for important organic synthons. We describe here a simple, elegant and high yielding protocol for the synthesis of α-aminophosphonates in totally solvent-free, catalyst-free conditions by reacting aldehydes, amines and trimethyl phosphite at ambient temperature. Here we describe a simple, elegant and high yielding protocol for the synthesis of α-aminophosphonates
(Bromodimethylsulfonium) bromide-catalyzed one-pot three-component synthesis of imidazo[1,2-a]pyridines
作者:R. Venkatesham、A. Manjula、B. Vittal Rao
DOI:10.1002/jhet.518
日期:2011.7
Abstract(Bromodimethylsulfonium) bromide–catalyzed one‐pot multicomponent reaction of 2‐aminopyridine with aromatic aldehyde(s) and TMSCN yielding N‐benzylidene‐2‐phenylimidazo[1,2‐a]pyridines exclusively has been described. The reaction is solvent free, versatile, and takes significantly short time. J. Heterocyclic Chem., (2011).