An article Fe3O4@C@OSO3H as an efficient, recyclable magnetic nanocatalyst in Pechmann condensation: green synthesis, characterization, and theoretical study WOS:000574093700001 published article about SOLVENT-FREE SYNTHESIS; ONE-POT CONSTRUCTION; SULFONIC-ACID; SEPARABLE CATALYST; COUMARIN DERIVATIVES; AMORPHOUS-CARBON; SULFURIC-ACID; FREE PROTOCOL; NANOPARTICLES; MECHANISM in [Samiei, Zahra; Soleimani-Amiri, Somayeh; Azizi, Zahra] Islamic Azad Univ, Dept Chem, Karaj Branch, Karaj, Iran in 2021.0, Cited 75.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5. COA of Formula: C7H8O2
Novel sulfonated carbon-coated magnetic nanoparticles (SCCMNPs; Fe3O4@C@OSO3H) were designed, synthesized, characterized, and applied as an efficient nanocatalyst for green synthesis of coumarin derivatives through Pechmann condensation. The Fe3O4@C@OSO3H was manufactured through a simple and inexpensive two-step procedure and characterized by FTIR, EDX, XRD, SEM, TEM, DLS, VSM, and TGA techniques. It was identified as an efficient heterogeneous catalyst in the Pechmann condensation of phenol derivatives and beta-ketoesters, leading to high-yield coumarin derivatives under solvent-free conditions. The Fe3O4@C@OSO3H removed after reaction finishing point by an external magnet, and it was reused fifteen times at the same conditions. Besides, theoretical studies were carried out using B3LYP/6-311++G(d,p) to more consideration of the reaction mechanism. The study of the frontier molecular orbitals, NBO atomic charges, molecular electrostatic potential of reactants, as well as Pechmann condensation mechanism was known very useful in suitable reactant choice. The reaction was performed through the electrophilic attack, dehydration, and trans-esterification, respectively. [GRAPHICS] .
About Mequinol, If you have any questions, you can contact Samiei, Z; Soleimani-Amiri, S; Azizi, Z or concate me.. COA of Formula: C7H8O2
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles