author_facet Belasri, Khadija
Fülöp, Ferenc
Szatmári, István
Belasri, Khadija
Fülöp, Ferenc
Szatmári, István
author Belasri, Khadija
Fülöp, Ferenc
Szatmári, István
spellingShingle Belasri, Khadija
Fülöp, Ferenc
Szatmári, István
Molecules
Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
Chemistry (miscellaneous)
Analytical Chemistry
Organic Chemistry
Physical and Theoretical Chemistry
Molecular Medicine
Drug Discovery
Pharmaceutical Science
author_sort belasri, khadija
spelling Belasri, Khadija Fülöp, Ferenc Szatmári, István 1420-3049 MDPI AG Chemistry (miscellaneous) Analytical Chemistry Organic Chemistry Physical and Theoretical Chemistry Molecular Medicine Drug Discovery Pharmaceutical Science http://dx.doi.org/10.3390/molecules24193578 <jats:p>By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized. The reaction was extended to 4-azaindoles and 6-azaindoles, as electron-rich aromatic compounds. The lowest reactivity was observed in the case of C-3 substitution of 5-azaindole. In this case, the aza-Friedel-Crafts reaction took place by using 10 mol % of p-toluenesulfonic acid (p-TSA) as the catalyst. The role of the acid catalyst can be explained by the different pKa values of the azaindoles. All reactions were performed in solvent-free conditions by using both classical heating and microwave irradiation. In all cases, microwave heating proved to be more convenient to synthesize new C-3-substituted azaindole derivatives.</jats:p> Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines Molecules
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recordtype ai
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series Molecules
source_id 49
title Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_unstemmed Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_full Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_fullStr Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_full_unstemmed Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_short Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_sort solvent-free c-3 coupling of azaindoles with cyclic imines
topic Chemistry (miscellaneous)
Analytical Chemistry
Organic Chemistry
Physical and Theoretical Chemistry
Molecular Medicine
Drug Discovery
Pharmaceutical Science
url http://dx.doi.org/10.3390/molecules24193578
publishDate 2019
physical 3578
description <jats:p>By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized. The reaction was extended to 4-azaindoles and 6-azaindoles, as electron-rich aromatic compounds. The lowest reactivity was observed in the case of C-3 substitution of 5-azaindole. In this case, the aza-Friedel-Crafts reaction took place by using 10 mol % of p-toluenesulfonic acid (p-TSA) as the catalyst. The role of the acid catalyst can be explained by the different pKa values of the azaindoles. All reactions were performed in solvent-free conditions by using both classical heating and microwave irradiation. In all cases, microwave heating proved to be more convenient to synthesize new C-3-substituted azaindole derivatives.</jats:p>
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author Belasri, Khadija, Fülöp, Ferenc, Szatmári, István
author_facet Belasri, Khadija, Fülöp, Ferenc, Szatmári, István, Belasri, Khadija, Fülöp, Ferenc, Szatmári, István
author_sort belasri, khadija
container_issue 19
container_start_page 0
container_title Molecules
container_volume 24
description <jats:p>By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized. The reaction was extended to 4-azaindoles and 6-azaindoles, as electron-rich aromatic compounds. The lowest reactivity was observed in the case of C-3 substitution of 5-azaindole. In this case, the aza-Friedel-Crafts reaction took place by using 10 mol % of p-toluenesulfonic acid (p-TSA) as the catalyst. The role of the acid catalyst can be explained by the different pKa values of the azaindoles. All reactions were performed in solvent-free conditions by using both classical heating and microwave irradiation. In all cases, microwave heating proved to be more convenient to synthesize new C-3-substituted azaindole derivatives.</jats:p>
doi_str_mv 10.3390/molecules24193578
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imprint MDPI AG, 2019
imprint_str_mv MDPI AG, 2019
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spelling Belasri, Khadija Fülöp, Ferenc Szatmári, István 1420-3049 MDPI AG Chemistry (miscellaneous) Analytical Chemistry Organic Chemistry Physical and Theoretical Chemistry Molecular Medicine Drug Discovery Pharmaceutical Science http://dx.doi.org/10.3390/molecules24193578 <jats:p>By direct coupling 7-azaindole and cyclic imines, such as 3,4-dihydroisoquinoline, 6,7-dihydrothieno[3,2-c]pyridine, 3,4-dihydro-β-carboline, and 4,5-dihydro-3H-benz[c]azepine, new 3-substituted 7-azaindole derivatives have been synthesized. The reaction was extended to 4-azaindoles and 6-azaindoles, as electron-rich aromatic compounds. The lowest reactivity was observed in the case of C-3 substitution of 5-azaindole. In this case, the aza-Friedel-Crafts reaction took place by using 10 mol % of p-toluenesulfonic acid (p-TSA) as the catalyst. The role of the acid catalyst can be explained by the different pKa values of the azaindoles. All reactions were performed in solvent-free conditions by using both classical heating and microwave irradiation. In all cases, microwave heating proved to be more convenient to synthesize new C-3-substituted azaindole derivatives.</jats:p> Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines Molecules
spellingShingle Belasri, Khadija, Fülöp, Ferenc, Szatmári, István, Molecules, Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines, Chemistry (miscellaneous), Analytical Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Molecular Medicine, Drug Discovery, Pharmaceutical Science
title Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_full Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_fullStr Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_full_unstemmed Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_short Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
title_sort solvent-free c-3 coupling of azaindoles with cyclic imines
title_unstemmed Solvent-Free C-3 Coupling of Azaindoles with Cyclic Imines
topic Chemistry (miscellaneous), Analytical Chemistry, Organic Chemistry, Physical and Theoretical Chemistry, Molecular Medicine, Drug Discovery, Pharmaceutical Science
url http://dx.doi.org/10.3390/molecules24193578