Abstract
Perchloric acid immobilized on silica gel (SiO2–HClO4) has been utilized as a mild and cheap reagent for onepot preparation of different varieties of flavylium salts via tandem reaction of different acetophenones with Salicylaldehydes under solvent-free conditions. Different reaction conditions such as conventional heating and microwave irradiation have been investigated. The corresponding flavylium salts have been prepared in high yields. The procedure is milder and more convenient than the known procedures.
Keywords: Flavylium salt, HClO4- SiO2, microwave irradiation, solvent-free conditions.
Graphical Abstract
Letters in Organic Chemistry
Title:Microwave Assisted Preparation of Flavylium Salts with Perchloric Acid Impregnated on Silica Gel Under Solvent-free Conditions
Volume: 11 Issue: 10
Author(s): Firouz Matloubi Moghaddam, Behzad Koushki Foroushani, Nima Ghonouei and Elaheh Lotfi Kalahroodi
Affiliation:
Keywords: Flavylium salt, HClO4- SiO2, microwave irradiation, solvent-free conditions.
Abstract: Perchloric acid immobilized on silica gel (SiO2–HClO4) has been utilized as a mild and cheap reagent for onepot preparation of different varieties of flavylium salts via tandem reaction of different acetophenones with Salicylaldehydes under solvent-free conditions. Different reaction conditions such as conventional heating and microwave irradiation have been investigated. The corresponding flavylium salts have been prepared in high yields. The procedure is milder and more convenient than the known procedures.
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Cite this article as:
Moghaddam Matloubi Firouz, Foroushani Koushki Behzad, Ghonouei Nima and Kalahroodi Lotfi Elaheh, Microwave Assisted Preparation of Flavylium Salts with Perchloric Acid Impregnated on Silica Gel Under Solvent-free Conditions, Letters in Organic Chemistry 2014; 11 (10) . https://dx.doi.org/10.2174/1570178611666140829220313
DOI https://dx.doi.org/10.2174/1570178611666140829220313 |
Print ISSN 1570-1786 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6255 |
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