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KMID : 1059520130570040472
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Journal of the Korean Chemical Society
2013 Volume.57 No. 4 p.472 ~ p.475
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ZrOCl2.8H2O as an Efficient Catalyst for the Three-Component Synthesis of Triazoloindazoles and Indazolophthalazines
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Tavakoli Hamid Reza
Moosavi Sayed Mojtaba
Bazgir Ayoob
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Abstract
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An efficient and environmentally benign protocol for the three-component synthesis of triazoloindazoles and indazolophthalazines via condensation of dimedone, aldehydes and urazole or phthalhydrazide catalyzed by ZrOCl2.8H2O as an inexpensive and eco-friendly catalyst with high catalytic activity under solvent-free conditions is reported. This protocol provides a new and improved method for obtaining triazoloindazoles and indazolophthalazines in terms of good yields, simple experimental procedure and short reaction time.
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KEYWORD
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Solvent-free, ZrOCl2.8H2O, Indazolophthalazines, Triazoloindazoles
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