Magnetic cellulose/Ag as a novel eco-friendly nanobiocomposite to catalyze synthesis of chromene-linked nicotinonitriles

Synthesis and crystal structure of a new copper (II) complex, designed to produce efficient successor of Cu2O, toward synergy of adsorption and photodegradation of MB

“…Previously, Rabbani et al 80 reported efficient removal of MB using catalysts of Ag–TiO 2 and Zn‐TCPP/Ag–TiO 2 under UV and visible light irradiation. They found that both synthetic catalysts have higher catalytic activity under UV light than the visible light and removal efficiency of MB reaches the maximum value of 100% for both catalysts 81–85 . Table shows the maximum removal of adsorption and photodegradation of MB by some catalyst 86–90 …”

A practical and highly efficient synthesis of densely functionalized nicotinonitrile derivatives catalyzed by zinc oxide‐decorated superparamagnetic silica attached to graphene oxide nanocomposite

“…In the next steps, the model reaction was also investigated in different solvents and temperatures to evaluate their effects. All of the studied conditions afforded lower yield of the desired product 6a even in longer reaction times (Table , entries 10–14) . On the other hand, when hydroxylamine hydrochloride (NH 2 OH·HCl) was used instead of NH 4 OAc in the presence of the catalyst 1 , the obtained mixture was sticky, and isolation of the desired product 6a was difficult and laborious.…”

“…Due to the importance of aminocyanopyridines, different strategies or techniques have been reported for their synthesis from appropriate substrates . Indeed, the strategy of multi‐component reactions (MCRs) is unique among the alternative synthetic paths in terms of atom economy, straightforward procedures, and the chance to prepare diverse target compounds by introduction of different components in a single reaction vessel .…”

Sonochemical synthesis of chromenes catalyzed by L-phenyl alanine-attached nano-Fe3O4@SiO2

“…The core/shell Fe 3 O 4 nanoparticles can be recycled from the medium of reaction by external magnetic field (13,14). The surface of MNPs can be functionalized simply through suitable surface modifications to provide the attachment of a variety of favorable functionalities (15)(16)(17)(18)(19)(20)(21)(22)(23)(24). Therefor the modified magnetic nanoparticles with all these features are used for varied organic reactions under ultrasonic irradiations (25,26).…”