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Synthesis of β-enaminones by ionic liquid catalysis: A one-pot condensation under solvent-free conditions

✍ Scribed by Marcos A.P. Martins; Clarissa P. Frizzo; Dayse N. Moreira; Fernanda A. Rosa; Mara R.B. Marzari; Nilo Zanatta; Helio G. Bonacorso

Book ID
119216258
Publisher
Elsevier Science
Year
2008
Tongue
English
Weight
119 KB
Volume
9
Category
Article
ISSN
1566-7367

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## Abstract Brønsted acidic ionic liquid [PyNCH~2~CO~2~H][HSO~4~] was found to be an effective catalyst for the condensation reactions of indoles with various 4‐formylpyrazoles to afford the corresponding bis‐indolylmethanes containing pyrazole under solvent‐free conditions. The satisfactory result