scholarly journals Ionic liquids as transesterification catalysts: applications for the synthesis of linear and cyclic organic carbonates

2016 ◽  
Vol 12 ◽  
pp. 1911-1924 ◽  
Author(s):  
Maurizio Selva ◽  
Alvise Perosa ◽  
Sandro Guidi ◽  
Lisa Cattelan
Keyword(s):  
Ionic Liquids ◽  
Cooperative Catalysis ◽  
Dialkyl Carbonates ◽  
Organic Carbonates ◽  
Pros And Cons ◽  
Transesterification Catalysts

The use of ionic liquids (ILs) as organocatalysts is reviewed for transesterification reactions, specifically for the conversion of nontoxic compounds such as dialkyl carbonates to both linear mono-transesterification products or alkylene carbonates. An introductory survey compares pros and cons of classic catalysts based on both acidic and basic systems, to ionic liquids. Then, innovative green syntheses of task-specific ILs and their representative applications are introduced to detail the efficiency and highly selective outcome of ILs-catalyzed transesterification reactions. A mechanistic hypothesis is discussed by the concept of cooperative catalysis based on the dual (electrophilic/nucleophilic) activation of reactants.

Green Chemistry and Green Solvents: An Overview

2020 ◽  
Vol 7 (3) ◽  
pp. 314-325
Author(s):  
Barla Karuna Devi ◽  
Swathi Naraparaju ◽  
Chaganti Soujanya ◽  
Sayan Dutta Gupta
Keyword(s):  
Ionic Liquids ◽  
Green Chemistry ◽  
Chemical Reaction ◽  
Supercritical Co2 ◽  
Environmental Problems ◽  
Green Solvents ◽  
Eutectic Mixtures ◽  
Organic Carbonates

: Green chemistry emphasizes designing novel routes to overcome health and environmental problems that occur during a chemical reaction. Green solvents are used in place of conventional solvents that are hazardous to both human and the environment. Solvents like water, ionic liquids, supercritical CO2, biosolvents, organic carbonates, and deep eutectic mixtures can be used as green solvents. The review focuses on the properties, applications, and limitations of these solvents.

PdCl2 immobilized on metal–organic framework CuBTC with the aid of ionic liquids: enhanced catalytic performance in selective oxidation of cyclohexene

RSC Advances ◽  
2016 ◽  
Vol 6 (39) ◽  
pp. 33048-33054 ◽  
Author(s):  
Qun-xing Luo ◽  
Min Ji ◽  
Sang-Eon Park ◽  
Ce Hao ◽  
Yan-qin Li
Keyword(s):  
Ionic Liquids ◽  
Selective Oxidation ◽  
Metal Organic Framework ◽  
Catalytic Performance ◽  
Cyclohexene Oxidation ◽  
Cooperative Catalysis ◽  
Metal Organic ◽  
Organic Framework

PdCl2 immobilized on CuBTC with the aid of ILs shows an enhanced catalytic performance in cyclohexene oxidation due to Pd–Cu cooperative catalysis and stabilization of Pd(ii).

Hydroxy-containing ionic liquids as catalysts in the synthesis of organic carbonates from epoxides and CO2

2020 ◽  
Vol 69 (8) ◽  
pp. 1598-1600
Author(s):  
S. E. Lyubimov ◽  
A. A. Zvinchuk ◽  
B. Chowdhury ◽  
V. A. Davankov
Keyword(s):  
Ionic Liquids ◽  
Organic Carbonates

Basic ionic liquids promoted chemical transformation of CO2 to organic carbonates

2018 ◽  
Vol 61 (12) ◽  
pp. 1486-1493 ◽  
Author(s):  
Jiayin Hu ◽  
Huizhen Liu ◽  
Buxing Han
Keyword(s):  
Ionic Liquids ◽  
Chemical Transformation ◽  
Organic Carbonates

Anion-Cation Cooperative Catalysis by Ionic Liquids

ChemCatChem ◽  
2011 ◽  
Vol 3 (8) ◽  
pp. 1359-1364 ◽  
Author(s):  
Lifeng Zhang ◽  
Xianlei Fu ◽  
Guohua Gao
Keyword(s):  
Ionic Liquids ◽  
Cooperative Catalysis

scholarly journals Reaction of o-Aminobenzamides with Dialkyl Carbonates and Ionic Liquids: A Novel one-pot, High-yield, Microwave-assisted Synthesis of 1-Alkylquinazoline-2,4-diones

2017 ◽  
Vol 56 (2) ◽  
Author(s):  
Leticia Guerrero R. ◽  
Ignacio A. Rivero
Keyword(s):  
Ionic Liquids ◽  
Alkylating Agents ◽  
High Yield ◽  
Microwave Assisted Synthesis ◽  
The Novel ◽  
Library Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Dialkyl Carbonates ◽  
Alkylation Reactions

A simple and efficient methodology for the synthesis of 1-alkyl-2,4-(1<em>H</em>,3<em>H</em>)-quinazolinediones from <em>o</em>-aminobenzamides has been developed. The novel one-pot cyclization-alkylation reactions are easier and faster than any other reported protocols and resulted in excellent yields (96-98%) and high purities, making this methodology suitable for library synthesis in drug discovery efforts. By applying microwave irradiation at 130 °C and in the presence of ionic liquids, dimethyl or diethyl carbonates simultaneously act as carbonylating and alkylating agents.

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