ChemInform Abstract: Wells-Dawson Heteropolyacid Supported on Silica: A Highly Efficient Catalyst for Synthesis of 2,4,5-Trisubstituted and 1,2,4,5-Tetrasubstituted Imidazoles
Autor: | Zahra Alimohammadi, Mostafa M. Amini, Ali Reza Karimi |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | ChemInform. 42 |
ISSN: | 0931-7597 |
DOI: | 10.1002/chin.201115131 |
Popis: | The multicomponent cyclocondensation of benzil with aromatic aldehydes, an amine and ammonium acetate (or ammonium acetate alone) is efficiently catalyzed by SiO2-supported Wells—Dawson heteropolyacid to give the polysubstituted imidazole derivatives (IV) and (VI) in high yields. |
Databáze: | OpenAIRE |
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