18505-84-5Relevant articles and documents
Green synthesis of Ag@Au bimetallic regenerated cellulose nanofibers for catalytic applications
Gopiraman, Mayakrishnan,Saravanamoorthy, Somasundaram,Baskar, Ramaganthan,Ilangovan, Andivelu,Ill-Min, Chung
, p. 17090 - 17103 (2019)
The green synthesis of nanocomposites has attracted huge consideration in recent years due to its positive environmentally friendly impact. The present study reports the first bimetallic Ag-Au cellulose nanofiber composite (Ag@Au/CNCs) prepared via a very simple green preparation method. An aqueous leaves extract of Moringa oleifera was used to obtain the bimetallic Ag@Au/CNC nanocomposite. High-resolution transmission electron microscopy (HRTEM) observations revealed the successful formation of triangle, hexagonal, and spherical shapes of well-combined Ag-Au nanoparticles on the regenerated cellulose nanofiber surface. Further, the formation of Au-Ag bimetallic nanostructures was confirmed by X-ray photoelectron spectroscopy (XPS) and X-ray crystallography (XRD) results. The resultant bimetallic Ag@Au/CNC catalyst was found to perform remarkably well in the reduction of nitrophenols. The bimetallic Ag@Au/CNC catalyst gave excellent kapp values of 15.59 and 22.83 × 10-3 s-1 for the 2- A nd 4-nitrophenol reduction process, respectively. To our delight, the Ag@Au/CNC catalyst was found to perform well in the aza-Michael reaction. The catalytic activity of Ag@Au/CNCs was compared with mono-metallic Ag/CNCs, Au/CNCs, and other reported catalysts. Based on the results obtained, the high synergy of Ag@Au/CNCs was explained. A possible mechanism is proposed for the Ag@Au/CNC-catalyzed nitrophenol reduction and aza-Michael reactions.
Development of novel multipotent compounds modulating endocannabinoid and dopaminergic systems
Grillo, Alessandro,Chemi, Giulia,Brogi, Simone,Brindisi, Margherita,Relitti, Nicola,Fezza, Filomena,Fazio, Domenico,Castelletti, Laura,Perdona, Elisabetta,Wong, Andrea,Lamponi, Stefania,Pecorelli, Alessandra,Benedusi, Mascia,Fantacci, Manuela,Valoti, Massimo,Valacchi, Giuseppe,Micheli, Fabrizio,Novellino, Ettore,Campiani, Giuseppe,Butini, Stefania,Maccarrone, Mauro,Gemma, Sandra
, (2019)
Polypharmacology approaches may help the discovery of pharmacological tools for the study or the potential treatment of complex and multifactorial diseases as well as for addictions and also smoke cessation. In this frame, following our interest in the de
N-Arylation of DABCO with Diaryliodonium Salts: General Synthesis of N-Aryl-DABCO Salts as Precursors for 1,4-Disubstituted Piperazines
Bugaenko, Dmitry I.,Yurovskaya, Marina A.,Karchava, Alexander V.
, p. 6389 - 6393 (2018/10/09)
Employing DABCO as a substrate, aryl(mesityl)iodonium triflates are introduced as arylating agents for a tertiary sp3-nitrogen. Mild conditions and exceptional selectivity of the aryl group transfer allow unprecedented N-aryl-DABCO salts to be obtained, bearing substituents of different electronic natures. This metal-free methodology has no analogy among known transition-metal-based reactions. The utility of isolated N-aryl-DABCO salts is demonstrated for the preparation of flibanserin.
