Silica tungstic acid and sulphated silica tungstic acid as highly efficient solid acid catalysts for the synthesis of pyrrole derivatives

Autor:	Y. Baratian, F. Moradgholi, J. Lari
Rok vydání:	2016
Předmět:	010405 organic chemistry Chemistry General Chemistry Solid acid Carbon-13 NMR 010402 general chemistry 01 natural sciences Pyrrole derivatives 0104 chemical sciences Catalysis chemistry.chemical_compound Elemental analysis Yield (chemistry) Tungstic acid Organic chemistry
Zdroj:	Russian Journal of General Chemistry. 86:2924-2927
ISSN:	1608-3350 1070-3632
Popis:	In the present study silica supported tungstic acid (STA) and sulphated silica tungstic acid (SSTA) were applied as efficient and cost-effective solid acid catalysts in the synthesis of N-substituted pyrrole derivatives via the Paal–Knorr reaction of 2,5-hexadione with aromatic and aliphatic amines at room temperature. The reaction completed in short time under mild conditions with high yield. The catalysts could be easily recovered upon reaction completion. Structures of all products were confirmed by elemental analysis, FT-IR, 1H and 13C NMR spectra.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::65f1b2589992985e4678b757c619aa25 https://doi.org/10.1134/s1070363216120616 Zobrazit plný text záznamu Plný text ve formátu PDF