Brønsted acidic ionic liquid-catalyzed dehydrative formation of isosorbide from sorbitol: introduction of a continuous process

2017 ◽  
Vol 7 (10) ◽  
pp. 2065-2073 ◽  
Author(s):  
Jie Deng ◽  
Bao-Hua Xu ◽  
Yao-Feng Wang ◽  
Xian-En Mo ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Continuous Process ◽  
Efficient Synthesis ◽  
Acidic Ionic Liquid ◽  
Highly Efficient ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
First Time

A highly efficient synthesis of isosorbide from sorbitol was developed using Brønsted acidic ionic liquids (BILs) as the catalyst for the first time.

scholarly journals Mild and Efficient Tunable Brønsted Acidic Ionic Liquid Catalyzed O-Acetylation and O-Trimethylsilylation with Trimethylsilyl Acetate (TMSOAc) and Hexamethyldisilazane (HMDS)

Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 825
Author(s):  
Amit Ravindra Pantawane ◽  
Mayur Thul ◽  
Yi-Jyun Lin ◽  
Michelle Lin ◽  
Wesley Lin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Room Temperature ◽  
Visible Spectroscopy ◽  
Acidic Ionic Liquid ◽  
Post Process ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Uv Visible ◽  
Work Up

This report discloses a mild and efficient O-acetylation using easily accessible TMSOAc as a novel acetyl reagent and O-trimethylsilylation using HMDS for various alcohols catalyzed by tunable Brønsted acidic ionic liquids (TBAILs). Imidazolium-based TBAILs were prepared by a two-step atom-economic reaction and acidities measured by using UV-visible spectroscopy. Both protections for alcohols were accomplished at room temperature with good to excellent yields, while the products and TBAILs were separated by simple work-up for O-silylation and column chromatography for O-acetylation. Notably, with the simple post-process, TBAILs catalyst in this solvent free method easily recovered and recycled several times without significant degradation.

Understanding the role of hydrogen bonding in Brønsted acidic ionic liquid-catalyzed transesterification: a combined theoretical and experimental investigation

2016 ◽  
Vol 18 (48) ◽  
pp. 32723-32734 ◽  
Author(s):  
Kaixin Li ◽  
Yibo Yan ◽  
Jun Zhao ◽  
Junxi Lei ◽  
Xinli Jia ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Ionic Liquid ◽  
Hydrogen Bonding ◽  
Catalytic Activity ◽  
Ionic Liquids ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Hydrogen Bonding Networks

The intra- and inter-hydrogen bonding networks that govern the catalytic activity of Brønsted acidic ionic liquids were identified.

Design of Brønsted acidic ionic liquid functionalized mesoporous organosilica nanospheres for efficient synthesis of ethyl levulinate and levulinic acid from 5-hydroxymethylfurfural

2021 ◽  
Author(s):  
Daiyu Song ◽  
Jingyu Liu ◽  
Chaoyue Zhang ◽  
Yihang Guo
Keyword(s):  
Ionic Liquid ◽  
Levulinic Acid ◽  
Catalytic Transformation ◽  
Efficient Synthesis ◽  
Practical Applications ◽  
Acidic Ionic Liquid ◽  
Mesoporous Organosilica ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids ◽  
Fuels And Chemicals

Brønsted acidic ionic liquids (BAILs) have brought new vitality in catalytic transformation of biomass to fuels and chemicals, but practical applications of BAILs suffer from drawbacks of slow diffusion and...

Brönsted acidic ionic liquid-catalyzed conversion of hemicellulose into sugars

2015 ◽  
Vol 5 (1) ◽  
pp. 531-539 ◽  
Author(s):  
Babasaheb M. Matsagar ◽  
Paresh L. Dhepe
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids

Brönsted acidic ionic liquids were synthesized, characterized and used in the conversion of assorted hemicelluloses to yield C5 sugars in 87% yield.

Catalytic synthesis of methyl caprylate using multi-SO3H functionalized Brønsted acidic ionic liquid as catalyst

2015 ◽  
Vol 4 (1) ◽  
Author(s):  
Chen Keke ◽  
Du Huan ◽  
Zhang Jiawen ◽  
Zhang Xiaofang ◽  
Kuang Yingying ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Catalytic Synthesis ◽  
Environmentally Benign ◽  
Acidic Ionic Liquid ◽  
Brønsted Acidic Ionic Liquid ◽  
Acidic Ionic Liquids

AbstractEnvironmentally benign Brønsted acidic ionic liquids with multi-SO

Highly efficient synthesis of phytosterol linolenate in the presence of Bronsted acidic ionic liquid

2018 ◽  
Vol 263 ◽  
pp. 1-7 ◽  
Author(s):  
Wen-Sen He ◽  
Ling-Ling Li ◽  
Qiu-Jin Huang ◽  
Ji Yin ◽  
Xue-Chen Cao
Keyword(s):  
Ionic Liquid ◽  
Efficient Synthesis ◽  
Acidic Ionic Liquid ◽  
Highly Efficient ◽  
Brønsted Acidic Ionic Liquid

Highly Efficient Synthesis of β-Amino Ketones via Direct Mannich-type Reaction Catalyzed by Acidic Ionic Liquid

2011 ◽  
Vol 8 (6) ◽  
pp. 385-390 ◽  
Author(s):  
Dong-Nuan Zhang ◽  
Ji-Tai Li ◽  
Ya-Li Song ◽  
Guo-Feng Chen
Keyword(s):  
Ionic Liquid ◽  
Efficient Synthesis ◽  
Type Reaction ◽  
Acidic Ionic Liquid ◽  
Highly Efficient

scholarly journals Highly efficient synthesis of alkylidene cyclic carbonates from low concentration CO2 using hydroxyl and azolate dual functionalized ionic liquids

2021 ◽  
Author(s):  
Guiling Shi ◽  
Ran Zhai ◽  
Haoran Li ◽  
Congmin Wang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Catalytic System ◽  
Cyclic Carbonates ◽  
Efficient Synthesis ◽  
Excellent Performance ◽  
Functionalized Ionic Liquid ◽  
Low Concentration ◽  
Propargylic Alcohols ◽  
Highly Efficient

A dual functionalized ionic liquid catalytic system was developed for the reaction between CO2 and propargylic alcohols, and exhibited excellent performance and good reusability, even under a low concentration of CO2 in a gram-scale reaction.

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