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.

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

scholarly journals One-pot cascade syntheses of microporous and mesoporous pyrazine-linked covalent organic frameworks as Lewis-acid catalysts

2019 ◽  
Vol 48 (21) ◽  
pp. 7352-7357 ◽  
Author(s):  
Yunchao Ma ◽  
Xiaozhou Liu ◽  
Xinyu Guan ◽  
Hui Li ◽  
Yusran Yusran ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Porous Solids ◽  
Acid Catalysts ◽  
Covalent Organic Frameworks ◽  
Lewis Acid Catalysts ◽  
One Pot ◽  
Potential Applications

Covalent organic frameworks (COFs) are crystalline porous solids with broad potential applications.

scholarly journals A Convenient Synthesis of Substituted Spiro[5.5]Undecanes Using Lewis Acid Catalysts

2012 ◽  
Vol 60 (1) ◽  
pp. 121-124 ◽  
Author(s):  
M Glasuddin Ahmed ◽  
UKR Romman ◽  
Kawsari Akhter ◽  
Monarul Islam ◽  
Mohammad Mosharrag Hossain ◽  
...  
Keyword(s):  
Lewis Acid ◽  
Michael Reaction ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
One Pot ◽  
One Pot Synthesis ◽  
Convenient Synthesis

A one-pot synthesis of 3, 3-Dimethyl-7, 11-diphenyl-spiro [5, 5] undecane-1, 5, 9-triones 4a-c has been achieved by the application of Michael reaction between dimedone (5,5-dimethylcyclohexane-1,3-dione) 1 and trans,trans diarylideneacetones [1,5-diaryl-1,4- pentadien-3-ones] 2a-c (a. Ar = C6H5-, b. Ar = 2-Cl-C6H4-, c. Ar = 2- CH3O- C6H4) using Lewis acid catalysts.DOI: http://dx.doi.org/10.3329/dujs.v60i1.10349  Dhaka Univ. J. Sci. 60(1): 121-124 2012 (January)

scholarly journals Alkaline-assisted stannation of beta zeolite as a scalable route to Lewis-acid catalysts for the valorisation of renewables

2016 ◽  
Vol 40 (5) ◽  
pp. 4136-4139 ◽  
Author(s):  
Pierre Y. Dapsens ◽  
Cecilia Mondelli ◽  
Javier Pérez-Ramírez
Keyword(s):  
Lewis Acid ◽  
Beta Zeolite ◽  
Acid Catalysts ◽  
Lewis Acid Catalysts ◽  
One Pot ◽  
Acid Character

Alkaline-assisted stannation comprises a scalable one-pot method to incorporate tin centres with a Lewis-acid character in beta zeolite for the isomerisation of renewables.

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
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