۳-Methyl-۱-sulfonic Acid Imidazolium Mesylate as a Novel, Highly Effective and Dual-functional Catalyst for the Solvent-free Production of Bis-coumarins
Publish place: Organic Chemistry Research، Vol: 6، Issue: 1
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ORGC-6-1_010
تاریخ نمایه سازی: 3 مهر 1402
Abstract:
A novel ionic liquid entitled ۳-methyl-۱-sulfonic acid imidazolium mesylate ([Msim][OMs]) was synthesized, and characterized by studying its FT-IR, ۱H NMR, ۱۳C NMR and mass spectra. This ionic liquid was employed as a dual-functional catalyst for the preparation of bis-coumarins via the one-pot pseudo three-component reaction of ۴-hydroxycoumarin (۲ eq.) and arylaldehydes (۱ eq.) under solvent-free and relatively mild conditions. Owing to dual-functionality of [Msim][OMs] (having acidic and basic sites), it could act as a highly effective catalyst for the reaction. Additionally, an attractive mechanism based on dual-functionality of the catalyst was proposed.
Keywords:
Ionic Liquid , ۳-Methyl-۱-sulfonic acid imidazolium mesylate ([Msim][OMs]) , Bis-coumarins , Dual-functional catalyst , Solvent-free
Authors
Aseih Kargar-Dolatabadi
Department of Chemistry, Payame Noor University, P. O. Box ۱۹۳۹۵-۳۶۹۷, Tehran, Iran.
Seyed Sajad Sajadikhah
Department of Chemistry, Payame Noor University, P. O. Box ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Abdolkarim Zare
Department of Chemistry, Payame Noor University, PO BOX ۱۹۳۹۵-۳۶۹۷, Tehran, Iran
Alemeh Razaghi
Department of Chemistry, Payame Noor University, PO BOX ۱۹۳۹۵-۳۶۹۷, Tehran, Iran