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JCR 2016
جستجوی مقالات
یکشنبه 27 مهر 1404
Iranian Journal of Chemistry and Chemical Engineering
، جلد ۴۰، شماره ۲، صفحات ۴۲۹-۴۳۶
عنوان فارسی
چکیده فارسی مقاله
کلیدواژههای فارسی مقاله
عنوان انگلیسی
Polyaniline, Polyaniline/SiO2 and Poly(4-vinylpyridine): as Highly Efficient and Recyclable Green Heterogeneous Basic Catalysts for the Three-Component Synthesis of Tetrahydrobenzopyran and 3,4-Dihydropyrano[c]Chromene Derivatives
چکیده انگلیسی مقاله
Polyaniline, polyaniline/SiO
2,
and poly(4-vinylpyridine) are highly effective base catalysts for the synthesis of tetrahydrobenzo[b]pyran and 3,4-dihydropyrano[c]chromene derivatives by the one-pot three-component condensation reaction of aryl aldehydes, malononitrile and α-hydroxy or α-amino activated C–H acids such as 1,3-cyclohexanedione, dimedone, 4-hydroxy-6-methylpyrone, 4-hydroxycoumarin, 1,3-dimethylbarbituric acid, and 1,3-dimethyl-6-amino uracil.
The remarkable advantages of this new procedure are high yields, short experimental time, mild reaction condition, low cost and easy preparation of the catalysts, and no need for any workup and purification after completion of the reaction
. In addition, these catalysts exhibited excellent recoverability without a negligible decrease of their activities after at least six cycles of reaction.
کلیدواژههای انگلیسی مقاله
Multi-component reaction, Tetrahydrobenzopyrans,3,4-Dihydropyrano[c]Chromenes,Green solvent,Heterogeneous catalyst, Ionic liquid
نویسندگان مقاله
Maryam Fathabadia |
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, I.R. IRAN
Behjat Pouramiri |
Student Research Committee, Jiroft University of Medical Science, Jiroft, I.R. IRAN
Mahboobeh Zahedifar |
Department of Chemistry, Faculty of Science, University of Jiroft, Jiroft, I.R. IRAN
Hassan Sheibani |
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, I.R. IRAN
Kazem Saidi |
Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, I.R. IRAN
نشانی اینترنتی
https://ijcce.ac.ir/article_37864_bfa1c8f7f2304e67f0eec7a03e0333db.pdf
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