Application of SBA-Pr-SO₃H in the synthesis of 2,3-dihydroquinazoline-4(1H)-ones: characterization, UV–Vis investigations and DFT studies

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• 作者：Seyedeh Yasaman Afsar ; Ghodsi Mohammadi Ziarani…
• 关键词：SBA ; Pr ; SO3H ; 2 ; 3 ; Dihydroquinazoline ; 4(1H) ; one ; Multicomponent reaction ; Isatoic anhydride ; UV absorbers
• 刊名：Journal of the Iranian Chemical Society
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：14
• 期：3
• 页码：577-583
• 全文大小：
• 刊物主题：Analytical Chemistry; Inorganic Chemistry; Physical Chemistry; Biochemistry, general; Organic Chemistry;
• 出版者：Springer Berlin Heidelberg
• ISSN：1735-2428
• 卷排序：14

文摘

An efficient one-pot synthesis of 2,3-dihydroquinazoline-4(1H)-one derivatives 4a–l is described using SBA-Pr-SO₃H as a heterogeneous acid catalyst. The present methodology resulted in various derivatives of 2,3-dihydroquinazoline-4(1H)-one in good yield via a three-component reaction of isatoic anhydride, aldehydes and ammonium acetate. SBA-Pr-SO₃H played a significant role as an efficient mesoporous catalyst due to its pore size of 6 nm. Additionally, UV–Vis spectrum of the products was studied in order to investigate their application as UV absorbers.