Zinc‐containing ionic liquid as a dual solvent‐catalyst in base‐free condensations under ultrasonic irradiation | Zendy

Ghafuri Hossein | Zendy; Yaghoubi Soheila | Zendy; Zand Hamid Reza Esmaili | Zendy

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Zinc‐containing ionic liquid as a dual solvent‐catalyst in base‐free condensations under ultrasonic irradiation

Author(s) -

Ghafuri Hossein,

Yaghoubi Soheila,

Zand Hamid Reza Esmaili

Publication year - 2019

Publication title -

applied organometallic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.53

H-Index - 71

eISSN - 1099-0739

pISSN - 0268-2605

DOI - 10.1002/aoc.5149

Subject(s) - chemistry , catalysis , ionic liquid , proton nmr , fourier transform infrared spectroscopy , solvent , nuclear magnetic resonance spectroscopy , carbon 13 nmr , inorganic chemistry , nuclear chemistry , analytical chemistry (journal) , organic chemistry , chemical engineering , engineering

In this study, natural‐based ionic liquid (IL) using caffeine (Caff), trietahnolamine (TEA) and ZnBr 2 , [Caff‐TEA] + [ZnBr 3 ] − , which features high catalytic activity and environmentally‐friendly nature was synthesized with melting point of 76 °C by a facile method. The synthesized [Caff‐TEA] + [ZnBr 3 ] − has high catalytic activity as both of catalyst and solvent in condensation reactions for the synthesis of benzylidenes, bis‐hydroxyenones and xanthenes. Synthesized IL was characterized by proton nuclear magnetic resonance ( 1 HNMR), Fourier transform infrared spectroscopy (FT‐IR), X‐ray diffraction (XRD) and Energy‐dispersive X‐ray spectroscopy (EDX) analysis. Also synthesized heterocycles were characterized by FT‐IR, proton nuclear magnetic resonance ( 1 HNMR) and carbon nuclear magnetic resonance ( 13 CNMR).

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