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8715708 
Journal Article 
Hexamethylenetetramine-based ionic liquid anchored onto the metal–organic framework MIL-101(Cr) as a superior and reusable heterogeneous catalyst for the preparation of hexahydroquinolines 
Sanaei-Rad, S; Saeidiroshan, H; Mirhosseini-Eshkevari, B; Ghasemzadeh, MA 
2021 
1 
Research on Chemical Intermediates
ISSN: 0922-6168
EISSN: 1568-5675 
47 
5 
2143-2159 
English 
Regarding the significance of medicinal and pharmacological sciences, we explored one-pot multicomponent reaction of aromatic aldehydes, aryl amines, malononitrile and dimedone in the presence of HMTA-BAIL@MIL-101 (Cr) as a novel, stable and strong catalyst. The remarkable features of this approach are good to excellent yields (92–98%), short reaction times (10–20 min), low catalyst loading, reusability and stability of the catalyst. The prepared hexamethylenetetramine-based ionic liquid/MIL-101(Cr) composite was identified via FE-SEM, XRD, EDS, TGA, BET and FT-IR techniques. 2021, The Author(s), under exclusive licence to Springer Nature B.V. part of Springer Nature. 
Brønsted acidic ionic liquid; Heterogeneous catalyst; Metal–organic frameworks; Multicomponent reactions; Quinoline derivatives