Task-specific Ionic Liquids as a Green Catalysts and Solvents for Organic Synthesis

2020 ◽  
Vol 7 (1) ◽  
pp. 105-119 ◽  
Author(s):  
Swapnil A. Padvi ◽  
Dipak S. Dalal
Keyword(s):  
Ionic Liquids ◽  
Physical Properties ◽  
Organic Synthesis ◽  
Review Article ◽  
Present Review ◽  
Organic Transformations ◽  
The Past ◽  
Properties Characterization

Task-specific ionic liquids (TSILs) have received increased attention over the past few years as a Green Catalysts and Solvents for a large number of organic transformations. The present review article aims to provide an introduction, types of task-specific ionic liquids, preparation/synthesis, physical properties, characterization, use of TSILs as solvent and catalyst in organic synthesis.

Ionic Liquids for the Synthesis of Five-Membered N,N-, N,N,N- and N,N,N,NHeterocycles

2019 ◽  
Vol 23 (11) ◽  
pp. 1214-1238 ◽  
Author(s):  
Navjeet Kaur ◽  
Pranshu Bhardwaj ◽  
Meenu Devi ◽  
Yamini Verma ◽  
Neha Ahlawat ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Organic Synthesis ◽  
Heterocyclic Compounds ◽  
Reaction Medium ◽  
Environmental Issues ◽  
Organic Reaction ◽  
Environment Friendly ◽  
The Past ◽  
Area Of Interest ◽  
Major Subject

Due to special properties of ILs (Ionic Liquids) like their wide liquid range, good solvating ability, negligible vapour pressure, non-inflammability, environment friendly medium, high thermal stability, easy recycling and rate promoters etc. they are used in organic synthesis. The investigation for the replacement of organic solvents in organic synthesis is a growing area of interest due to increasing environmental issues. Therefore, ionic liquids have attracted the attention of chemists and act as a catalyst and reaction medium in organic reaction with high activity. There is no doubt that ionic liquids have become a major subject of study for modern chemistry. In comparison to traditional processes the use of ionic liquids resulted in improved, complimentary or alternative selectivities in organic synthesis. The present manuscript reported the synthesis of multiple nitrogen containing five-membered heterocyclic compounds using ionic liquids. This review covered interesting discoveries in the past few years.

Organic Synthesis

2017 ◽  
Author(s):  
Douglass F. Taber ◽  
Tristan Lambert
Keyword(s):  
Organic Synthesis ◽  
State Of The Art ◽  
Research Area ◽  
Organic Transformations ◽  
The Past ◽  
Catalytic Asymmetric Synthesis ◽  
New Methods ◽  
Recent Developments ◽  
Enantioselective Epoxidation ◽  
To Come

Organic synthesis is a vibrant and rapidly evolving field; chemists can now cyclize alkenes directly onto enones. Like the first five books in this series, Organic Synthesis: State of the Art 2013-2015 will lead readers quickly to the most important recent developments in a research area. This series offers chemists a way to stay abreast of what's new and exciting in organic synthesis. The cumulative reaction/transformation index of 2013-2015 outlines all significant new organic transformations over the past twelve years. Future volumes will continue to come out every two years. The 2013-2015 volume features the best new methods in subspecialties such as C-O, C-N and C-C ring construction, catalytic asymmetric synthesis, selective C-H functionalization, and enantioselective epoxidation. This text consolidates two years of Douglass Taber's popular weekly online column, "Organic Chemistry Highlights" as featured on the organic-chemistry.org website and also features cumulative indices of all six volumes in this series, going back twelve years.

Formation of Carbon-Nitrogen Bond Mediated by Hypervalent Iodine Re-agents Under Metal-free Conditions

2020 ◽  
Vol 24 ◽  
Author(s):  
Yaxin O Yang ◽  
Xi Wang ◽  
Jiaxi Xiao ◽  
Yadong Li ◽  
Fengxia Sun ◽  
...  
Keyword(s):  
Building Blocks ◽  
Review Article ◽  
Hypervalent Iodine ◽  
Coupling Reactions ◽  
Organic Transformations ◽  
Metal Free ◽  
Bond Forming ◽  
The Past ◽  
Oxidative Coupling Reactions ◽  
Nitrogen Bond

: In the past several decades, hypervalent iodine chemistry has witnessed prosperous development as hypervalent iodine reagents have been widely used in various organic transformations. Specifically, hypervalent iodine reagents have been vastly used in various bond-forming reactions. Among these oxidative coupling reactions, the reactions involving the formation of C-N bond have been extensively explored to construct various heterocyclic skeletons and synthesize various useful building blocks. This review article is to summarize all the transformations in which carbon-nitrogen bond formation occurred by using hypervalent iodine reagents under metal-free conditions.

Lemon Juice: A versatile reusable biocatalyst for the synthesis of bioactive organic compounds as well as numerous nanoparticles based catalytic system

2021 ◽  
Vol 25 ◽  
Author(s):  
Yogesh Brijwashi Sharma ◽  
Bhakti Umesh Hirlekar ◽  
Yogesh P. Bharitkar ◽  
Abhijit Hazra
Keyword(s):  
Green Chemistry ◽  
Small Molecules ◽  
Organic Synthesis ◽  
Potential Role ◽  
Fruit Juice ◽  
Lemon Juice ◽  
Review Article ◽  
Organic Transformations ◽  
Environment Friendly ◽  
Principal Role

Green chemistry is an essential part of the chemistry for the organic synthesis and also plays a principal role to save the environment from the harmful and toxic catalysts. Fruit juice catalyzed chemistry is a vital part of green chemistry in which lemon juice play a potential role in a various organic transformations. This review article has been summarized (from 2011-2020) with the application and importance of lemon juice in synthetic organic transformation as well as synthesis of various type of nanoparticles and catalysts. This review article can help the researcher to develop the route for the synthesis of various scaffolds, small molecules, nanoparticles and catalysts under economical and environment friendly condition.

Ultrasound-Promoted Organic Synthesis – A Recent Update

2021 ◽  
Vol 25 ◽  
Author(s):  
Goutam Brahmachari ◽  
Nayana Nayek ◽  
Mullicka Mandal ◽  
Anindita Bhowmick ◽  
Indrajit Karmakar
Keyword(s):  
Organic Chemistry ◽  
Green Chemistry ◽  
Organic Synthesis ◽  
Ultrasound Irradiation ◽  
Present Review ◽  
Organic Transformations ◽  
Reaction Conditions ◽  
Catalytic Systems ◽  
Bond Forming ◽  
Reducing Energy

: Ultrasonication, nowadays, is well-regarded as an effective green tool in implementing a plethora of organic transformations. The last decade has seen quite useful applications of ultrasound irradiation in synthetic organic chemistry. Ultrasound has already come out as a unique technique in green chemistry practice, for its inherent properties of minimizing wastes and reducing energy and time, thereby increasing the product yields with higher purities under milder reaction conditions. The present review summarizes ultrasound-promoted useful organic transformations involving both carbon-carbon and carbon-heteroatom (N, O, S) bond-forming reactions in the absence or presence of varying catalytic systems, reported during the period 2016-2020.

Naturally derived sugar-based ionic liquids: an emerging tool for sustainable organic synthesis and chiral recognition

2021 ◽  
Author(s):  
Sabbasani Rajasekhara Reddy ◽  
Priyanka Muthukuru ◽  
P. Krisnaraj ◽  
Jayachandra Rayadurgam
Keyword(s):  
Ionic Liquids ◽  
Organic Synthesis ◽  
Chiral Recognition ◽  
Natural Abundance ◽  
Promising Candidate ◽  
The Past

During the past decade, the synthesis of sugar-based ionic liquids (SILs) from natural sugars has been described as a promising candidate. This is due to their natural abundance in large...

tert-Butyl Nitrite (TBN) as a Versatile Reagent in Organic Synthesis

Synthesis ◽  
2017 ◽  
Vol 50 (04) ◽  
pp. 711-722 ◽  
Author(s):  
Xiaodong Jia ◽  
Pengfei Li
Keyword(s):  
Molecular Oxygen ◽  
Organic Synthesis ◽  
Radical Reactions ◽  
Organic Transformations ◽  
Metal Free ◽  
Tert Butyl ◽  
The Past ◽  
Recent Advances ◽  
Versatile Reagent

tert-Butyl nitrite (TBN) is an important metal-free reagent that is widely applied in various organic transformations. Besides its traditional applications in nitrosation and diazotization, its ability to activate molecular oxygen to enable the initiation of radical reactions, including nitration, oximation, oxidation, and so on, has attracted extensively attention in the past decade. This review highlights recent advances in this field to promote further exploration of this versatile compound.1 Introduction2 Reactions Involving TBN2.1 Nitrosation2.2 Oximation2.3 Diazotization2.4 Nitration2.5 Oxidation2.6 Other Reactions3 Conclusion and Perspective

Recent advancements on Benzimidazole: A versatile scaffold in medicinal chemistry

2021 ◽  
Vol 21 ◽  
Author(s):  
Zohor Mohammad Mahdi Alzhrani ◽  
Mohammad Mahboob Alam ◽  
Syed Nazreen
Keyword(s):  
Clinical Trials ◽  
Medicinal Chemistry ◽  
Biological Activities ◽  
Review Article ◽  
Present Review ◽  
Benzimidazole Derivatives ◽  
The Past ◽  
Anti Inflammatory

: Benzimidazole is nitrogen containing fused heterocycle which has been extensively explored in medicinal chemistry. Benzimidizole nucleus has been found to possess various biological activities such as anticancer, antimicrobial, anti-inflammatory, antiviral, antitubercular and antidiabetic. A number of benzimidazoles such as bendamustine, pantoprazole have been approved for the treatment of various illnesses whereas galeterone and GSK461364 are in clinical trials. The present review article gives an overview about the different biological activities exhibited by the benzimidazole derivatives as well as different methods used for the synthesis of benzimidazole derivatives for the past ten years.

A Concise Review of Hypervalent Iodine with Special Reference to Dess- Martin Periodinane

2020 ◽  
Vol 17 (8) ◽  
pp. 946-957
Author(s):  
Ravindra V. Kupwade
Keyword(s):  
Organic Synthesis ◽  
Oxidative Coupling ◽  
Carbonyl Compounds ◽  
Hypervalent Iodine ◽  
Organic Transformations ◽  
Oxidative Functionalization ◽  
The Past ◽  
Concise Review ◽  
Iodine Compounds ◽  
Related Compounds

The chemistry of hypervalent iodine compounds has been experiencing considerable attention of organic chemists during the past few years. Hypervalent iodine reagents have found ubiquitous applications in organic synthesis because of their mild and highly chemoselective oxidizing properties, easy commercial availability, and environmental benign character. Along with oxidation of alcohol, they have also shown to be useful in number of organic transformations which include oxidative functionalization of carbonyl compounds, catalytic imidations, cyclization, oxidative coupling of phenols, amines and related compounds. Among various hypervalent iodine reagents, iodine-V compounds (λ5-iodanes) have attracted much attention in recent years. This review narrates the particular advances in iodine (V) reagents with special emphasis on the use of DMP in organic transformations.

scholarly journals Functions of Ionic Liquids in Preparing Membranes for Liquid Separations: A Review

Membranes ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 395
Author(s):  
Dayuan Zheng ◽  
Dan Hua ◽  
Yiping Hong ◽  
Abdul-Rauf Ibrahim ◽  
Ayan Yao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ionic Liquids ◽  
Vapor Pressure ◽  
Physical Properties ◽  
Review Article ◽  
Future Perspectives ◽  
Comprehensive Overview ◽  
Membrane Materials ◽  
Recent Developments ◽  
Liquid Separations

Membranes are widely used for liquid separations such as removing solute components from solvents or liquid/liquid separations. Due to negligible vapor pressure, adjustable physical properties, and thermal stability, the application of ionic liquids (ILs) has been extended to fabricating a myriad of membranes for liquid separations. A comprehensive overview of the recent developments in ILs in fabricating membranes for liquid separations is highlighted in this review article. Four major functions of ILs are discussed in detail, including their usage as (i) raw membrane materials, (ii) physical additives, (iii) chemical modifiers, and (iv) solvents. Meanwhile, the applications of IL assisted membranes are discussed, highlighting the issues, challenges, and future perspectives of these IL assisted membranes in liquid separations.

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