Chloroaluminate ionic liquid‐modified silica‐coated magnetic nanoparticles: Efficient and reusable catalyst for selective synthesis of mono‐ and bis‐dihydropyrano[3,2‐b]chromenediones
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DOI: 10.1002/aoc.3799
Abstract: The synthesis, characterization and catalytic activity of chloroaluminate ionic liquid-modified silica-coated magnetic nanoparticles ([SiPrPy]AlCl4@MNPs) are described. The prepared magnetic nanocatalyst was characterized using Fourier transform infrared spectroscopy, elemental analysis, vibrating sample magnetometry, scanning and transmission… read more here.
Keywords: dihydropyrano chromenediones; ionic liquid; synthesis; chloroaluminate ionic ... See more keywords
B(C6F5)3 catalyzed synthesis of dihydropyrano[3,2-b]chromenediones under solvent-free conditions
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DOI: 10.1080/00397911.2019.1585542
Abstract: Abstract A simple, efficient, solventless, and one step, B(C6F5)3 catalyzed, synthesis of dihydropyrano[3,2-b]chromenediones from dimedone, aldehyde and kojic acid is described. This protocol proceeds smoothly, accommodates aromatic as well as heteroaromatic aldehydes and gives dihydropyrano[3,2-b]chromenediones… read more here.
Keywords: dihydropyrano chromenediones; catalyzed synthesis; c6f5 catalyzed; synthesis dihydropyrano ... See more keywords