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Title
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Perchloric Acid-Functionalized Silica Nanosphere as Novel and Green Catalyst for the Synthesis of 2H-indazolo[2,1-b]phthalazinetrione Derivatives
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Type
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JournalPaper
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Keywords
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Silica nanosphere, silica perchloric acid nanosphere, dimedone, 2H-indazolo[2,1-b]phthalazinetrione derivatives, solvent-free.
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Abstract
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In this report, synthesis and characterization of silica perchloric acid nanosphere as a novel and heterogeneous catalyst are described. It has a spherical shape and the particle size is between 75 and 100 nm. The catalytic activity has been investigated in coupling reaction involving a variety of aldehydes, phthalhydrazide, dimedone at 80°C under solvent-free conditions. This method offers advantages such as good yields, simple conditions, shorter reaction time, and reusable activity catalyst
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Researchers
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Mohammad Hossein Fekri (Fourth Researcher), sadegh rahmati (Third Researcher), Ardeshir Khazaei (Second Researcher), mahdieh chegeni (First Researcher)
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