A Brønsted Acid Ionic Liquid Immobilized on Fe3O4@SiO2 Nanoparticles as an Efficient and Reusable Solid Acid Catalyst for the Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones

In this work, glucose was transformed into 5-hydroxymethylfurfural (HMF) and 5-ethoxymethylfurfural (EMF) in the presence of AlCl3·6H2O and a Brønsted solid acid catalyst (PTSA–POM).

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Multi-Layer Functionalized Poly(Ionic Liquid) Coated Magnetic Nanoparticles: Highly Recoverable and Magnetically Separable Brønsted Acid Catalyst

ACS Catalysis ◽

10.1021/cs300140j ◽

2012 ◽

Vol 2 (6) ◽

pp. 1259-1266 ◽

Cited By ~ 121

Author(s):

Ali Pourjavadi ◽

Seyed Hassan Hosseini ◽

Maliheh Doulabi ◽

Seyed Mahmoud Fakoorpoor ◽

Farzad Seidi

Keyword(s):

Ionic Liquid ◽

Magnetic Nanoparticles ◽

Acid Catalyst ◽

Bronsted Acid ◽

Brønsted Acid ◽

Brönsted Acid ◽

Brønsted Acid Catalyst ◽

Magnetically Separable ◽

Brönsted Acid Catalyst ◽

Poly Ionic Liquid

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Identification of the strong Brønsted acid site in a metal–organic framework solid acid catalyst

Nature Chemistry ◽

10.1038/s41557-018-0171-z ◽

2018 ◽

Vol 11 (2) ◽

pp. 170-176 ◽

Cited By ~ 77

Author(s):

Christopher A. Trickett ◽

Thomas M. Osborn Popp ◽

Ji Su ◽

Chang Yan ◽

Jonathan Weisberg ◽

...

Keyword(s):

Acid Site ◽

Solid Acid ◽

Metal Organic Framework ◽

Solid Acid Catalyst ◽

Acid Catalyst ◽

Bronsted Acid ◽

Brønsted Acid Site ◽

Brönsted Acid ◽

Metal Organic ◽

Organic Framework

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Brønsted acid ionic liquid-catalyzed reductive Friedel–Crafts alkylation of indoles and cyclic ketones without using an external reductant

Green Chemistry ◽

10.1039/c4gc01299b ◽

2015 ◽

Vol 17 (2) ◽

pp. 812-816 ◽

Cited By ~ 79

Author(s):

Amir Taheri ◽

Bingbing Lai ◽

Cheng Cheng ◽

Yanlong Gu

Keyword(s):

Ionic Liquid ◽

Acid Catalyst ◽

Cyclic Ketone ◽

Bronsted Acid ◽

Brønsted Acid ◽

Cyclic Ketones ◽

Brönsted Acid

C3-cycloalkylated indole was synthesized from indole and cyclic ketone in the absence of a reductant with the aid of an acid catalyst.

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Conversion of Glucose to 5-Hydroxymethylfurfural, Levulinic Acid, and Formic Acid in 1,3-Dibutyl-2-(2-butoxyphenyl)-4,5-diphenylimidazolium Iodide-Based Ionic Liquid

Applied Sciences ◽

10.3390/app11030989 ◽

2021 ◽

Vol 11 (3) ◽

pp. 989

Author(s):

Megawati Zunita ◽

Deana Wahyuningrum ◽

Buchari ◽

Bunbun Bundjali ◽

I Gede Wenten ◽

...

Keyword(s):

Ionic Liquid ◽

Formic Acid ◽

Levulinic Acid ◽

High Performance ◽

Acid Catalyst ◽

Separation Process ◽

Bronsted Acid ◽

Brønsted Acid ◽

Dehydration Reaction ◽

Brönsted Acid

The separation process between 5-hydroxymethylfurfural (HMF) and trace glucose in glucose conversion is important in the biphasic system (aqueous–organic phase), due to the partial solubility property of HMF in water. In addition, the yield of HMF via the dehydration reaction of glucose in water is low (under 50%) with the use of Brønsted acid as a catalyst. Therefore, this study was conducted to optimize the production and separation of products by using a new hydrophobic ionic liquid (IL), which is more selective than water. The new IL (1,3-dibutyl-2-(2-butoxyphenyl)-4,5-diphenyl imidazolium iodide) [DBDIm]I was used as a solvent and was optimized for the dehydration reaction of glucose to make a more selective separation of HMF, levulinic acid (LA), and formic acid (FA). [DBDIm]I showed high performance as a solvent for glucose conversion at 100 °C for 120 min, with a yield of 82.2% HMF, 14.9% LA, and 2.9% FA in the presence of sulfuric acid as the Brønsted acid catalyst.

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