ChemInform Abstract: Novel Broensted Acidic Deep Eutectic Solvent as Reaction Media for Esterification of Carboxylic Acid with Alcohols.

ChemInform ◽  
2012 ◽  
Vol 43 (52) ◽  
pp. no-no
Author(s):  
Valerio De Santi ◽  
Fabio Cardellini ◽  
Lucia Brinchi ◽  
Raimondo Germani
Keyword(s):  
Carboxylic Acid ◽  
Deep Eutectic Solvent ◽  
Reaction Media

Novel Brønsted acidic deep eutectic solvent as reaction media for esterification of carboxylic acid with alcohols

2012 ◽  
Vol 53 (38) ◽  
pp. 5151-5155 ◽  
Author(s):  
Valerio De Santi ◽  
Fabio Cardellini ◽  
Lucia Brinchi ◽  
Raimondo Germani
Keyword(s):  
Carboxylic Acid ◽  
Deep Eutectic Solvent ◽  
Reaction Media

Application of Deep Eutectic Solvent (DES) as a Reaction Media for the Esterification of Acrylic Acid with n-Butanol

2015 ◽  
Vol 13 (3) ◽  
pp. 389-393 ◽  
Author(s):  
Emine Sert
Keyword(s):  
Catalytic Activity ◽  
Acrylic Acid ◽  
Batch Reactor ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Molar Ratio ◽  
Catalyst Loading ◽  
Toluene Sulfonic Acid ◽  
Effects Of Temperature ◽  
Reaction Media

Abstract Within the framework of green chemistry, catalysts should be met different criteria such as biodegradability, recyclability, flammability, non-toxicity and low price. Acidic deep eutectic solvent (DES) have been synthesized for this purpose, by mixing para-toluene sulfonic acid and choline chloride. The catalytic activity of DES was studied in the esterification of acrylic acid with n-butanol. The usage of DES as catalyst is simple, safe and cheap. The effects of temperature, catalyst loading, n-butanol/acrylic acid molar ratio on the conversion of acrylic acid were performed. The batch reactor experiments were carried out at temperatures of 338, 348, 358 and 368 K, molar ratio of butanol to acrylic acid of 1, 2,3 and catalyst loading of 10, 15, 20 and 90 g/L. 90.2% of acrylic acid conversion was achieved at a temperature of 358 K and catalyst loading of 20 g/L. Reusability of DES was investigated. Reusability and catalytic activity makes DES efficient as catalyst.

Solvent-mediated Highly Efficient Synthesis of [1,2,4]triazolo/benzimidazoloquinazolinone Derivatives

2020 ◽  
Vol 16 (8) ◽  
pp. 1185-1190 ◽  
Author(s):  
Fatemeh Malamiri ◽  
Samad Khaksar ◽  
Rashid Badri ◽  
Elham Tahanpesar
Keyword(s):  
Deep Eutectic Solvent ◽  
Efficient Synthesis ◽  
Melting Points ◽  
Reaction Conditions ◽  
Catalyst Free ◽  
Highly Efficient ◽  
Reaction Media

Objective: An efficient and catalyst-free procedure for the synthesis of [1,2,4]triazolo/benzimidazolo quinazolinones has been developed in 2,2,2-trifluoroethanol or deep eutectic solvent(DESs) as a clean reaction media. Methods: All of the obtained products are known compounds and identified by IR, 1HNMR,13CNMR, and melting points. Results: Various products were obtained in good to excellent yields under reaction conditions. Conclusion: We have efficiently developed a practical and catalyst-free approach for the synthesis of [1,2,4]triazolo/benzimidazolo quinazolinones employing TFE as a clean and reusable media.

scholarly journals Pyrrolidinium salt based binary and ternary deep eutectic solvents: green preparations and physiochemical property characterizations

2018 ◽  
Vol 7 (4) ◽  
pp. 353-359 ◽  
Author(s):  
Jing Wang ◽  
Sheila N. Baker
Keyword(s):  
Melting Point ◽  
Large Scale ◽  
Deep Eutectic Solvent ◽  
Deep Eutectic Solvents ◽  
Industrial Applications ◽  
Economic Feasibility ◽  
Preparation Process ◽  
Green Solvents ◽  
Liquid Form ◽  
Reaction Media

Abstract Ionic liquids (ILs) are considered to be green solvents for various applications. However, their synthesis via chemical reaction with by-products or waste produced is contradictory to the concept of green chemistry, and the purity problem and economic feasibility limit their applications in some large-scale industrial applications. 1-Butyl-1-methylpyrrolidinium bromide ([bmpy][Br]), which is a molten salt with melting point above 100°C is a precursor of pyrrolidinium ILs, but hardly can be put under the category of IL because of its high melting point. In this study, [bmpy][Br] based binary deep eutectic solvent (BDES) and ternary deep eutectic solvent (TDES) were synthesized to prepare [bmpy][Br] in liquid form. During the preparation process, no reaction media was employed, no by-product was generated, and no further purification was required, thereby making it a completely green process. The prepared TDES has better thermal stability and larger free volume than BDES, which is potentially useful for sorption applications with high temperature requirement. It is also because of the green preparation process that the TDES is also expected to be capable for the large-scale industrial applications. This work is opening up new avenues for the study of binary and ternary IL-DES system and their applications.

ChemInform Abstract: Deep Eutectic Solvent as a Highly Efficient Reaction Media for the One-Pot Synthesis of Benzo-Fused Seven-Membered Heterocycles.

ChemInform ◽  
2016 ◽  
Vol 47 (48) ◽  
Author(s):  
Ahmad Shaabani ◽  
Seyyed Emad Hooshmand ◽  
Mohammad Taghi Nazeri ◽  
Ronak Afshari ◽  
Shima Ghasemi
Keyword(s):  
Deep Eutectic Solvent ◽  
One Pot ◽  
Highly Efficient ◽  
One Pot Synthesis ◽  
The One ◽  
Reaction Media

scholarly journals Surfactant–Solvent Interaction Effects on the Micellization of Cationic Surfactants in a Carboxylic Acid-Based Deep Eutectic Solvent

Langmuir ◽  
2017 ◽  
Vol 33 (50) ◽  
pp. 14304-14314 ◽  
Author(s):  
Adrian Sanchez-Fernandez ◽  
Oliver S. Hammond ◽  
Andrew J. Jackson ◽  
Thomas Arnold ◽  
James Doutch ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Cationic Surfactants ◽  
Deep Eutectic Solvent ◽  
Interaction Effects ◽  
Solvent Interaction

Friedel–Crafts alkylation of indoles in deep eutectic solvent

RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 52062-52065 ◽  
Author(s):  
Atul Kumar ◽  
Ratnakar Dutt Shukla ◽  
Dhiraj Yadav ◽  
Lalit Prakash Gupta
Keyword(s):  
Carbonyl Compounds ◽  
Deep Eutectic Solvent ◽  
Product Selectivity ◽  
P Application ◽  
Salient Features ◽  
Reaction Media

Application of DES as a solvent and a working catalyst for Friedel–Crafts alkylation of indoles with isatin/homocyclic carbonyl compounds has been developed. The salient features of the present protocol are product selectivity and reusability of reaction media.

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