2604-08-2Relevant articles and documents
Structural tuning enables piezochromic and photochemical properties in N-aryl-β-enaminones
Hsieh, Wan-Chi,Manjappa, Kiran B.,Yang, Ding-Yah
, p. 34088 - 34094 (2019/11/13)
An efficient synthesis of N-aryl-β-enaminones via Et3N-mediated, one-pot three-component reaction of 4-hydroxycoumarin/dimedone, β-nitrostyrene/2-(2-nitrovinyl)thiophene, and arylamine in toluene under refluxed conditions is herein presented. Some prepared compounds were found to exhibit piezochromic properties. The XRD and SEM measurements of the piezochromic compound showed substantial crystal packing and morphology changes before and after grinding. Further, one prepared compound was found to be light-sensitive and can be converted to a furo[3,2-b]pyridin-2(4H)-one derivative upon UV irradiation. A plausible mechanism for this photochemical reaction was proposed.
TiO2-SO42- Catalyzed Synthesis and Antimicrobial Activity/Molecular Docking Studies of β-Indolylnitroalkanes
Santhisudha, Sarva,Jayaprakash, Soora Harinath,Mohan, Gundluru,Kumar, Yellapu Nanda,Suganthi, Vaithiyanathan,Mohanasrinivasan, Vaithiyalingam,Reddy, Cirandur Suresh
, p. 290 - 297 (2016/05/19)
Michael addition of indole derivatives with various substituted nitrostyrenes to yield β- indolylnitroalkanes is accomplished effectively under solvent free conditions using TiO2-SO4 2- as efficient catalyst at 60 ° C. All the synthesized compounds were screened for their antibacterial activity through in silico and in vitro methods. The molecular docking studies against FabH enzyme, a potential drug target of bacterial fatty acid biosynthetic pathway indicated the scope of developing them a new class of antimicrobial agents. Among the title compounds, 5h exhibited the highest dock score and the highest antibacterial activity when compared with other compounds and the standard drug Ampicillin. In addition, the compounds 5d, 5e, 5g, 5h, 5i, 5j and 5l showed significant inhibitory activity at different dose concentrations under in vitro conditions against the specified bacterial strains thus qualifying for further clinical evaluation so that they can be used as effective anti-bacterial agents.
Mesoporous nickel hydroxyapatite nanocomposite for microwave-assisted Henry reaction
Neelakandeswari,Sangami,Emayavaramban,Karvembu,Dharmaraj,Kim, Hak Yong
experimental part, p. 2980 - 2984 (2012/07/28)
The utility of nickel hydroxyapatite nanocomposite (Ni-HAp) as a green catalyst for solvent free, microwave-assisted Henry reaction using nitromethane and a series of aromatic aldehydes as substrates is presented. The selected catalyst performed well to afford the respective nitrostyrenes which were quantified by gas chromatography equipped with a mass spectral detector (GC-MS). A few of the products were identified from the respective nuclear magnetic resonance (NMR) spectral data.