Green Biodiesel Production Catalyzed by Basic Ionic Liquid

2013 ◽  
Vol 291-294 ◽  
pp. 379-382 ◽  
Author(s):  
Yong Gang Guo ◽  
Bao Hua Huang ◽  
Na Shi ◽  
Xiao Zhong Ma ◽  
Yan Ping Huo ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Microwave Irradiation ◽  
Processing Time ◽  
Biodiesel Production ◽  
Efficient Catalyst ◽  
Basic Ionic Liquid ◽  
Alkyl Side Chains ◽  
Biphasic Systems ◽  
Operational Simplicity

Transesterification were carried out under microwave irradiation conditions and the effects of imidazolium hydroxide with different branched alkyl side-chains ([Cnmim]OH, n = 2, 3, 4) were investigated. The results showed that less than conventional amount of NaOH, and the alkaline ionic liquids formed clearly biphasic systems immediately after the transesterification of soybean oil with methanol was finished. The method offers significant improvement over conventional techniques in terms of operational simplicity, processing time reduction and excellent yields. Among the imidazolium salts studied, [C2mim]OH proved to be the most efficient catalyst, affording 96 % yield.

Heterogenization of amine-functionalized ionic liquids using graphene oxide as a support material: a highly efficient catalyst for the synthesis of 3-substituted indoles via Yonemitsu-type reaction

2017 ◽  
Vol 41 (24) ◽  
pp. 15545-15554 ◽  
Author(s):  
Charu Garkoti ◽  
Javaid Shabir ◽  
Padmini Gupta ◽  
Manisha Sharma ◽  
Subho Mozumdar
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Ionic Liquids ◽  
Recyclable Catalyst ◽  
Support Material ◽  
Efficient Catalyst ◽  
Functionalized Ionic Liquid ◽  
Type Reaction ◽  
Highly Efficient ◽  
Amine Functionalized

Heterogenization of amine functionalized ionic liquid and its application as an efficient and recyclable catalyst.

scholarly journals Properties and applications of cellulose regenerated from cellulose/imidazolium-based ionic liquid/co-solvent solutions: A short review

e-Polymers ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 869-880
Author(s):  
Ahmad Adlie Shamsuri ◽  
Khalina Abdan ◽  
Siti Nurul Ain Md. Jamil
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Cellulose Acetate ◽  
Processing Time ◽  
Short Review ◽  
Organic Liquids ◽  
Regenerated Cellulose ◽  
Solvent Mixtures ◽  
Different Types ◽  
Novel Applications

Abstract An improvement of ecological conscience currently has increased the consciousness of researchers in reducing the processing time and cost of solvent for the dissolution of cellulose. Latterly, ionic liquids have been employed to process cellulose as they are recyclable and nonvolatile. Besides that, biopolymers such as chitosan, chitin, starch, protein, and cellulose acetate can also be processed by using ionic liquids for diverse applications. In this short review, examples of imidazolium-based ionic liquids that are commonly used for the dissolution of cellulose are implied. Furthermore, examples of organic liquids that are utilized as co-solvents for ionic liquids were revealed. In addition, examples of imidazolium-based ionic liquid/co-solvent mixtures utilized in the dissolution of cellulose and other biopolymers are also demonstrated. The properties and applications of cellulose and its blends regenerated from different types of cellulose/imidazolium-based ionic liquid/co-solvent solutions are also shortly reviewed. The information acquired from this review gives a better understanding of the changes in the properties of regenerated cellulose and regenerated cellulose blends. In addition, this short review serves as a model basis for the creation of novel applications of regenerated cellulose and regenerated cellulose blends by utilizing imidazolium-based ionic liquid/co-solvent mixtures.

scholarly journals Hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts as major descriptors in the formation of aqueous biphasic systems

2018 ◽  
Vol 20 (20) ◽  
pp. 14234-14241 ◽  
Author(s):  
Helena Passos ◽  
Teresa B. V. Dinis ◽  
Ana Filipa M. Cláudio ◽  
Mara G. Freire ◽  
João A. P. Coutinho
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Predictive Model ◽  
Aqueous Biphasic Systems ◽  
Molar Entropy ◽  
Liquid Salt ◽  
Hydrogen Bond Basicity ◽  
Aqueous Biphasic ◽  
Biphasic Systems

A predictive model for ionic liquid/salt aqueous biphasic systems’ formation based on the hydrogen bond basicity of ionic liquids and molar entropy of hydration of salts.

InCl3·4H2O-promoted green preparation of xanthenedione derivatives in ionic liquids

2005 ◽  
Vol 83 (1) ◽  
pp. 16-20 ◽  
Author(s):  
Xuesen Fan ◽  
Xueyuan Hu ◽  
Xinying Zhang ◽  
Jianji Wang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Green Synthesis ◽  
Novel Method ◽  
Green Procedure ◽  
Reaction Media ◽  
Operational Simplicity

A green procedure for the synthesis of xanthenedione derivatives (3) through InCl3·4H2O-promoted condensation of aldehydes (1) and 5,5-dimethyl-1,3-cyclohexanedione (2) in ionic liquids is described in this paper. This novel method has such advantages as operational simplicity and environmental benignancy together with enhanced atom utilization. Moreover, the reaction media and the catalyst can be recovered conveniently and reused effectively for at least six times.Key words: ionic liquid, xanthenedione derivatives, indium trichloride, green synthesis.

Novel Basic Ionic Liquid Based on Alkylammonium as Efficient Catalyst for Knoevenagel Reaction

2012 ◽  
Vol 42 (9) ◽  
pp. 1384-1391 ◽  
Author(s):  
Shuai Zhou ◽  
Lu Liu ◽  
Bo Wang ◽  
Mingguo Ma ◽  
Feng Xu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Knoevenagel Reaction ◽  
Efficient Catalyst ◽  
Basic Ionic Liquid

A catalyst-free protocol for the green and efficient condensation of indoles with aldehydes in ionic liquids

2009 ◽  
Vol 87 (2) ◽  
pp. 416-421 ◽  
Author(s):  
Abdolkarim Zare ◽  
Abolfath Parhami ◽  
Ahmad Reza Moosavi-Zare ◽  
Alireza Hasaninejad ◽  
Ali Khalafi-Nezhad ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Microwave Irradiation ◽  
Reaction Times ◽  
Aliphatic Aldehydes ◽  
Catalyst Free

Indoles are efficiently condensed with aromatic and aliphatic aldehydes in the absence of any catalyst in ionic liquid 1-butyl-3-methylimidazolium bromide {bmim]Br} under microwave irradiation to afford bis(indolyl)methanes in good to excellent yields and in short reaction times.

scholarly journals Ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br): A green and neutral reaction media for the efficient, catalyst-free synthesis of quinoxaline derivatives

2010 ◽  
Vol 75 (10) ◽  
pp. 1315-1324 ◽  
Author(s):  
Abdolkarim Zare ◽  
Alireza Hasaninejad ◽  
Abolfath Parhami ◽  
Ahmad Moosavi-Zare ◽  
Fatemeh Khedri ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Microwave Irradiation ◽  
Reaction Times ◽  
Efficient Catalyst ◽  
Neutral Reaction ◽  
Catalyst Free ◽  
Quinoxaline Derivatives ◽  
Reaction Media

Quinoxaline derivatives were produced in excellent yields and short reaction times via the condensation of 1,2-diamines with 1,2-diketones in the neutral ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br) under catalyst-free and microwave irradiation conditions.

An effective and environment-friendly system for Cu NPs@RGO-catalyzed C–C homocoupling of aryl halides or arylboronic acids in ionic liquids under microwave irradiation

RSC Advances ◽  
2016 ◽  
Vol 6 (47) ◽  
pp. 41108-41113 ◽  
Author(s):  
Hongyan Zhao ◽  
Guijie Mao ◽  
Huatao Han ◽  
Jinyi Song ◽  
Yang Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Microwave Irradiation ◽  
Aryl Halides ◽  
Green Solvent ◽  
Environment Friendly ◽  
Arylboronic Acids

Cu NPs@RGO can effectively catalyze Ullmann C–C homocoupling of aryl halides and arylboronic acids under microwave irradiation in green solvent ionic liquid..

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