Novel Bifunctional Mesoporous Catalysts Based on Preyssler Heteropolyacids for Green Pyrrole Derivative Synthesis

Autor:	Omar Portilla-Zúñiga, Ángel Sathicq, José Martínez, Hugo Rojas, Eduardo De Geronimo, Rafael Luque, Gustavo P. Romanelli
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	catalox SBA-90 Preyssler heteropolyacids pyrroles catalyst green chemistry Chemical technology TP1-1185 Chemistry QD1-999
Zdroj:	Catalysts, Vol 8, Iss 10, p 419 (2018)
Druh dokumentu:	article
ISSN:	2073-4344
DOI:	10.3390/catal8100419
Popis:	In this paper, we report the synthesis of Preyssler heteropolyacids supported on mesoporous alumina in order to obtain materials with acid–base properties. A series of pyrrole derivatives were synthesized using a suitable procedure under solvent-free conditions. Using the alumina-supported material, more complex pyrrole derivatives can be obtained through a tandem one-pot process that involves the formation of 2-amino-3-cyano 4-H-chromenes by a multicomponent reaction and their subsequent conversion to pyrrole using a Paal–Knorr reaction.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/15db725f44f54ab88cb4021b316dd670 Zobrazit plný text záznamu View record in DOAJ Plný text ve formátu PDF Plný text ve formátu HTML
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