Ultrasound-Engineered fabrication of immobilized molybdenum complex on Cross-Linked poly (Ionic Liquid) as a new acidic catalyst for the regioselective synthesis of pharmaceutical polysubstituted spiro compounds.

Ultrasonics Sonochemistry
Zahra ElyasiGholam Reza Najafi

Abstract

A novel supported molybdenum complex on cross-linked poly (1-Aminopropyl-3-vinylimidazolium bromide) entrapped cobalt oxide nanoparticles has been successfully fabricated through two different procedures, i.e. ultrasound (US) irradiations (100 W, 40 kHz) and reflux. The efficiency of the two different methods was comparatively investigated on the fundamental properties of proposed catalyst using diverse characterization techniques. Based on the obtained results, the ultrasonication method provides controlled polymerization process; as a result, well connected polymeric network is formed. In addition, the use of ultrasound waves turned out to be able to increase the particles uniformity, specific surface area (from 79.19 to 223.83 m2/g), and the onset thermal degradation temperature (Td) value (from 248 to 400 °C) of the prepared catalyst which intensifies the catalytic efficiency. Besides, US-treated catalyst demonstrated high chemical stability and maintained its cross-linked network after eight cycles recovery, while the cross-linked network of catalyst obtained under silent condition was completely disrupted. Furthermore, the ultrafast multi-step fabrication procedure was performed in less than 6 h under ultrasonic condition...Continue Reading

References

Mar 20, 2015·Cell Biology International·Sara SalatinAhmad Yari Khosroushahi
Feb 10, 2017·Chemical Society Reviews·Wenjing QianFeng Yan
Mar 28, 2017·Ultrasonics Sonochemistry·Gregory Chatel
May 26, 2017·Chemical Reviews·Zhigang LeiDouglas R MacFarlane
Apr 4, 2018·Combinatorial Chemistry & High Throughput Screening·Mohammad A GhasemzadehZahra Elyasi
Apr 28, 2018·Biophysics Reviews·Tom Welton
Feb 2, 2019·Chemistry : a European Journal·Thomas G McKenzieGreg G Qiao
Apr 10, 2019·Coordination Chemistry Reviews·Chiyu WeiZhiguang Song
Nov 2, 2019·Journal of Hazardous Materials·Vijayalakshmi ThangarajSankaralingam Velmurugan
Feb 26, 2020·Chemical Society Reviews·Su-Yun ZhangJiayin Yuan
Mar 16, 2021·European Journal of Medicinal Chemistry·Prajwal DhokneNagula Shankaraiah

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