Mixed metal double salt ionic liquids comprised of [HN222]2[ZnCl4] and AlCl3 provide tunable Lewis acid catalysts related to the ionic environment

2018 ◽  
Vol 47 (23) ◽  
pp. 7795-7803 ◽  
Author(s):  
Rajkumar Kore ◽  
Steven. P. Kelley ◽  
Pavankumar Aduri ◽  
Robin D. Rogers
Keyword(s):  
Ionic Liquids ◽  
Lewis Acid ◽  
Double Salt ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Mixed Metal ◽  
Catalytic Activities ◽  
Ionic Environment

Tunable acidic mixed-metal double salt ionic liquids (DSILs), [HN222]2x[(1 − x)AlCl3 + xZnCl4], were prepared by mixing [HN222]2[ZnCl4] with AlCl3, and found to have unique and controllable catalytic activities.

scholarly journals Reaction of Glycerol with Trimethyl Orthoformate: Towards the Synthesis of New Glycerol Derivatives

Catalysts ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 534 ◽  
Author(s):  
Roberto Calmanti ◽  
Emanuele Amadio ◽  
Alvise Perosa ◽  
Maurizio Selva
Keyword(s):  
Ionic Liquids ◽  
Lewis Acid ◽  
Synthetic Approach ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
Catalyst Free ◽  
Acidic Ionic Liquids ◽  
Brønsted And Lewis Acid ◽  
Trimethyl Orthoformate

The reactivity of glycerol with trimethyl orthoformate is here described with an emphasis on developing a reliable synthetic approach for glycerol valorization. The glycerol based orthoester 4-(dimethoxymethoxy)methyl)-2-methoxy-1,3-dioxolane (3) was synthesized, under catalytic as well as catalyst-free conditions, by taking advantage of the thermodynamically controlled equilibrium between intermediates. Both Brønsted and Lewis acid catalysts accelerated the attainment of such an equilibrium, particularly Brønsted acidic ionic liquids BSMImHSO4 and BSMImBr were the most effective compounds for this reaction. The kinetic profiles allowed the proposal of a mechanism that accounts for the selectivity of the reaction.

Immobilised Ionic Liquids as Lewis Acid Catalysts for the Alkylation of Aromatic Compounds with Dodecene

2000 ◽  
Vol 196 (1) ◽  
pp. 86-94 ◽  
Author(s):  
C. DeCastro ◽  
E. Sauvage ◽  
M.H. Valkenberg ◽  
W.F. Hölderich
Keyword(s):  
Ionic Liquids ◽  
Lewis Acid ◽  
Aromatic Compounds ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

An In-Depth Look at the Effect of Lewis Acid Catalysts on Diels—Alder Cycloadditions in Ionic Liquids.

ChemInform ◽  
2005 ◽  
Vol 36 (45) ◽  
Author(s):  
Guadalupe Silvero ◽  
Maria Jose Arevalo ◽  
Jose Luis Bravo ◽  
Martin Avalos ◽  
Jose Luis Jimenez ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Lewis Acid ◽  
Diels Alder ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

An Efficient, Eco-Friendly, One-Pot Protocol for the Synthesis of 2-Oxazolines Promoted by Ionic Liquid/Indium Chloride

2006 ◽  
Vol 59 (7) ◽  
pp. 463 ◽  
Author(s):  
R. Kamakshi ◽  
Boreddy S. R. Reddy
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Lewis Acid ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
One Pot ◽  
Indium Chloride ◽  
Ambient Temperatures ◽  
Alkyl Chains ◽  
Liquid Indium

2-Oxazolines have been synthesized using a solventless ionic liquid melt in good yields at ambient temperatures. The efficiency of various Lewis acid catalysts for the same reaction has been compared. The effectiveness of different alkyl chains in the ionic liquids for the synthesis of oxazolines has been studied and a butylmethylimidazolinium chloride/indium chloride melt has been found to be the best media for promoting the reaction.

An in-depth look at the effect of Lewis acid catalysts on Diels–Alder cycloadditions in ionic liquids

Tetrahedron ◽  
2005 ◽  
Vol 61 (30) ◽  
pp. 7105-7111 ◽  
Author(s):  
Guadalupe Silvero ◽  
María José Arévalo ◽  
José Luis Bravo ◽  
Martín Ávalos ◽  
José Luis Jiménez ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Lewis Acid ◽  
Diels Alder ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts

Hydrothermal synthesis of Sn-Beta zeolites in F−-free medium

2018 ◽  
Vol 5 (11) ◽  
pp. 2763-2771 ◽  
Author(s):  
Hao Xu ◽  
Xudong Wang ◽  
Peng Ji ◽  
Haihong Wu ◽  
Yejun Guan ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Lewis Acid ◽  
Crystal Size ◽  
Acid Catalysts ◽  
Free Medium ◽  
Lewis Acid Catalysts ◽  
Structure Directing Agent ◽  
Highly Active ◽  
Beta Zeolites

Sn-Beta zeolites, with high Sn content and smaller crystal size, hydrothermally synthesized in F−-free medium using N-cyclohexyl-N,N-dimethylcyclohexanaminium hydroxide as the structure-directing agent with the assistance of Na+ and seed, are highly active as Lewis acid catalysts.

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