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Creation of DABCO‐Based Amphoteric Ionic Liquid Supported TiO 2 Nanoparticles: Execution of Amplified Catalytic Properties on Microwave‐Assisted Synthesis of N‐Substituted Pyrroles
Author(s) -
Mondal Priya,
Chatterjee Sauvik,
Bhaumik Asim,
Maity Suvendu,
Ghosh Prasanta,
Mukhopadhyay Chhanda
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201900325
Subject(s) - ionic liquid , dabco , catalysis , thermogravimetric analysis , materials science , titanium dioxide , nanoparticle , high resolution transmission electron microscopy , dynamic light scattering , chemical engineering , inorganic chemistry , chemistry , transmission electron microscopy , organic chemistry , nanotechnology , engineering , metallurgy
This is the first report of DABCO based amphoteric ionic liquid supported TiO 2 nanoparticles, a supported catalyst with an ionic liquid layer (SCILL). It is highly efficient, recyclable, quasi heterogeneous catalyst for microwave assisted solvent free synthesis. Highly polar DABCO based ionic liquid with high dielectric constant of titanium dioxide nanoparticles enables the system as efficient microwave irradiation absorber. Amplified catalytic properties of this new combined green catalytic system have been first time implemented for the chromatography‐free synthesis of highly functionalised pyrrole moieties under microwave assisted solvent‐free conditions. The generation of catalyst and ionic liquid capping over titanium dioxide nanoparticles were characterised via Scanning Electron Microscopy (SEM), High Resolution Transmission Electron Microscopy (HRTEM), Thermo Gravimetric Analysis (TGA), Dynamic Light Scattering (DLS), Powder X‐Ray Diffraction (PXRD), Energy Dispersive Analysis X‐ray (EDAX) and Fourier Transform Infrared Spectroscopy (FT‐IR spectra). This combined quasi heterogeneous twin catalytic system, containing both acidic and basic environment afford the desired products in excellent yields within short reaction time. Here, the catalytic effect featuring the synergetic effect of titanium dioxide nanoparticles and amphoteric DABCO based ionic liquid were magnificently tethered.