scholarly journals New Eco-Friendly 1-Alkyl-3-(4-phenoxybutyl) Imidazolium-Based Ionic Liquids Derivatives: A Green Ultrasound-Assisted Synthesis, Characterization, Antibacterial Activity and POM Analyses

Molecules ◽  
2014 ◽  
Vol 19 (8) ◽  
pp. 11741-11759 ◽  
Author(s):  
Mouslim Messali ◽  
Mohamed Aouad ◽  
Wael El-Sayed ◽  
Adeeb Al-Sheikh Ali ◽  
Taibi Ben Hadda ◽  
...  
2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Shihong Liu ◽  
Michael Gonzalez ◽  
Celine Kong ◽  
Scott Weir ◽  
Aaron M. Socha

Abstract Background Ionic liquids (ILs) are promising pretreatment solvents for lignocellulosic biomass, but are largely prepared from petroleum precursors. Benzaldehydes from depolymerized lignin, such as vanillin, syringaldehyde, and 4-methoxy benzaldehyde, represent renewable feedstocks for the synthesis of ionic liquids. We herein report syntheses of novel lignin-derived ionic liquids, with extended N-alkyl chains, and examine their melting points, cellulose dissolution capacities, and toxicity profiles against Daphnia magna and E. coli strain 1A1. The latter organism has been engineered to produce isoprenol, a drop-in biofuel and precursor for commodity chemicals. Results The new N,N-diethyl and N,N-dipropyl methyl benzylammonium ILs were liquids at room temperature, showing 75–100 °C decreased melting points as compared to their N,N,N-trimethyl benzylammonium analog. Extension of N-alkyl chains also increased antibacterial activity threefold, while ionic liquids prepared from vanillin showed 2- to 4-fold lower toxicity as compared to those prepared from syringaldehyde and 4-methoxybenzaldehyde. The trend of antibacterial activity for anions of lignin-derived ILs was found to be methanesulfonate < acetate < hydroxide. Microcrystalline cellulose dissolution, from 2 to 4 wt% after 20 min at 100 °C, was observed in all new ILs using light microscopy and IR spectroscopy. Conclusions Ionic liquids prepared from H-, S- and G-lignin oxidation products provided differential cytotoxic activity against E. coli and D. magna, suggesting these compounds could be tailored for application specificity within a biorefinery.


2020 ◽  
Vol 30 (5) ◽  
pp. 642-644
Author(s):  
Andreii S. Kritchenkov ◽  
Alexander I. Kurachenkov ◽  
Anton R. Egorov ◽  
Niyaz Z. Yagafarov ◽  
Elena A. Fortalnova ◽  
...  

2012 ◽  
Vol 22 (35) ◽  
pp. 18252 ◽  
Author(s):  
Tarek Alammar ◽  
Osama Shekhah ◽  
Jonas Wohlgemuth ◽  
Anja-Verena Mudring

2006 ◽  
Vol 13 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Jean-Marc Lévêque ◽  
Simon Desset ◽  
Joel Suptil ◽  
Claude Fachinger ◽  
Micheline Draye ◽  
...  

ChemInform ◽  
2010 ◽  
Vol 41 (42) ◽  
Author(s):  
Changdev Namdev Raut ◽  
Sandeep Madhukar Bagul ◽  
Ravindra Ashok Janrao ◽  
Sanjay Dashrath Vaidya ◽  
Bobba Venkata Siva Kumar ◽  
...  

2021 ◽  
Vol 325 ◽  
pp. 115125
Author(s):  
Md. Abrar Siddiquee ◽  
Juhi Saraswat ◽  
Khalid Imtiyaz ◽  
Ab Raouf Bhat ◽  
Farooq Ahmad Wani ◽  
...  

2016 ◽  
Vol 88 (3) ◽  
pp. 422-433 ◽  
Author(s):  
Diana Hodyna ◽  
Vasyl Kovalishyn ◽  
Sergiy Rogalsky ◽  
Volodymyr Blagodatnyi ◽  
Kirill Petko ◽  
...  

2019 ◽  
Vol 129 ◽  
pp. 229-235 ◽  
Author(s):  
Katherine Guzmán ◽  
Brajesh Kumar ◽  
Maria Jose Vallejo ◽  
Marcelo Grijalva ◽  
Alexis Debut ◽  
...  

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