Ultrasound promoted and Kit‐6 mesoporous silica‐supported Fe<sub>3</sub>O<sub>4</sub> magnetic nanoparticles catalyzed cyclocondensation reaction of 4‐hydroxycoumarin, 3,4‐methylenedioxyphenol, and aromatic aldehydes
Shahrzad Abdolmohammadi, Shahab Shariati, Behrooz Mirza
Abstract
A new effective approach to synthesize a series of 7‐aryl‐6 H ,7 H ‐[1]benzopyrano[4,3‐ b ][1,3]dioxolo[4,5‐ g ][1]benzopyran‐6‐ones was reported using Fe 3 O 4 @SiO 2 @Kit‐6 as heterogeneous catalyst at room temperature under ultrasonic irradiation in aqueous media. This procedure is of great value due to its short reaction time, high yields, simple processing, and the use of easily available and magnetically recyclable heterogeneous catalyst.
Topics & Concepts
ChemistryCatalysisMesoporous materialAqueous solutionNanoparticleHeterogeneous catalysisBenzopyranAqueous mediumNuclear chemistryMesoporous silicaChemical engineeringCombinatorial chemistryOrganic chemistryEngineeringMulticomponent Synthesis of HeterocyclesSynthesis of Organic CompoundsSynthesis and biological activity