A Mild, Efficient and Environmentally Friendly Method for the Regio- and Chemoselective Synthesis of Enaminones Using Bi(TFA)3 as a Reusable Catalyst in Aqueous Media.

ChemInform ◽  
2004 ◽  
Vol 35 (23) ◽  
Author(s):  
Ahmad R. Khosropour ◽  
Mohammad M. Khodaei ◽  
Mehdi Kookhazadeh
Keyword(s):  
Aqueous Media ◽  
Environmentally Friendly ◽  
Reusable Catalyst ◽  
Chemoselective Synthesis ◽  
Environmentally Friendly Method

scholarly journals Dowex 50W: A Green Mild Reusable Catalyst for the Synthesis of 2-Aryl Benzoxazole Derivatives in Aqueous Medium

2021 ◽  
Vol 37 (2) ◽  
pp. 341-347
Author(s):  
Arup Datta
Keyword(s):  
Aqueous Medium ◽  
Heterogeneous Catalyst ◽  
Environmentally Friendly ◽  
High Yield ◽  
Reusable Catalyst ◽  
One Pot ◽  
Simple Process ◽  
Effective Catalyst ◽  
Rapid Reaction ◽  
Environmentally Friendly Method

In this work simple efficient, one pot and environmentally friendly method was developed for the synthesis of 2-Aryl-1H-benzoxazole derivatives at 80º C using ortho-aminophenol and various aldehydes. It has been found that Dowex50W is an effective catalyst to prepare moderate to high yield of a variety of benzoxazole derivatives through a clean and simple process. Aqueous medium, green methodology, rapid reaction, reusability of heterogeneous catalyst are the great advantages of this protocol.

scholarly journals Self-assembly of tetra(aniline) nanowires in acidic aqueous media with ultrasonic irradiation

2015 ◽  
Vol 3 (45) ◽  
pp. 11945-11952 ◽  
Author(s):  
Wei Lyu ◽  
Jiangtao Feng ◽  
Wei Yan ◽  
Charl FJ Faul
Keyword(s):  
Aqueous Medium ◽  
Ultrasonic Irradiation ◽  
Self Assembly ◽  
Aqueous Media ◽  
Environmentally Friendly ◽  
The Self ◽  
Environmentally Friendly Method

An environmentally friendly method is developed to explore the self-assembly of Ph/NH2-capped tetra(aniline) nanowires in acidic aqueous medium with ultrasonic irradiation.

Synthesis of polyethylene glycol-functionalized multi-walled carbon nanotubes with a microwave-assisted approach for improved heat dissipation

RSC Advances ◽  
2015 ◽  
Vol 5 (45) ◽  
pp. 35425-35434 ◽  
Author(s):  
Ahmad Amiri ◽  
Rad Sadri ◽  
Goodarz Ahmadi ◽  
B. T. Chew ◽  
S. N. Kazi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polyethylene Glycol ◽  
Heat Dissipation ◽  
Aqueous Media ◽  
Environmentally Friendly ◽  
One Pot ◽  
Microwave Assisted ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Environmentally Friendly Method

In order to improve the dispersibility of multi-walled carbon nanotubes (MWCNT) in aqueous media, MWCNT were functionalized with tetrahydrofurfuryl polyethylene glycol (TFPEG) in a one-pot, fast and environmentally friendly method.

A simple and environmentally friendly method for the synthesis of N-phenylanthranilic acid derivatives

2006 ◽  
Vol 2006 (5) ◽  
pp. 342-344 ◽  
Author(s):  
Hanakere R. Girisha ◽  
Gejjalagere R. Srinivasa ◽  
D. Channe Gowda
Keyword(s):  
Environmentally Friendly ◽  
Environmentally Friendly Method

Environmentally friendly cyclotrimerization of substituted acetophenones catalyzed by a new nanocomposite of γ-Al2O3 nanoparticles decorated with H5PW10V2O40

RSC Advances ◽  
2016 ◽  
Vol 6 (60) ◽  
pp. 55319-55326 ◽  
Author(s):  
Reza Tayebee ◽  
Kokab Savoji ◽  
Maryam Kargar Razi ◽  
Behrooz Maleki
Keyword(s):  
Environmentally Friendly ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Al2o3 Nanoparticles ◽  
Solvent Free Conditions

An efficient protocol for the synthesis of C3-symmetrical 1,3,5-triarylbenzenes under solvent-free conditions. γ-Al2O3/H5PW10V2O40 nanocomposite is introduced as a highly reusable catalyst.

Preparation of an improved sulfonated carbon-based solid acid as a novel, efficient, and reusable catalyst for chemoselective synthesis of 2-oxazolines and bis-oxazolines

2009 ◽  
Vol 140 (12) ◽  
pp. 1489-1494 ◽  
Author(s):  
Valiollah Mirkhani ◽  
Majid Moghadam ◽  
Shahram Tangestaninejad ◽  
Iraj Mohammadpoor-Baltork ◽  
Mohammad Mahdavi
Keyword(s):  
Solid Acid ◽  
Reusable Catalyst ◽  
Chemoselective Synthesis ◽  
Carbon Based

scholarly journals DABCO Catalyzed Synthesis of Xanthene Derivatives in Aqueous Media

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Pradeep Paliwal ◽  
Srinivasa Rao Jetti ◽  
Anjna Bhatewara ◽  
Tanuja Kadre ◽  
Shubha Jain
Keyword(s):  
Reaction Time ◽  
Aqueous Media ◽  
Environmentally Friendly ◽  
The Other ◽  
Short Reaction Time ◽  
Xanthene Derivatives ◽  
Reaction Proceeds ◽  
Conventional Methods

The reaction of 5,5-dimethylcyclohexane-1,3-dione with various heteroarylaldehydes afforded the corresponding heteroaryl substituted xanthene derivatives 1(a–f). The reaction proceeds via the initial Knoevenagel, subsequent Michael, and final heterocyclization reactions using 1,4-diazabicyclo[2.2.2]octane (DABCO) as a catalyst in aqueous media. The synthesized heteroaryl substituted xanthenes 1(a–f) reacted with malononitrile to obtain different alkylidenes 2(a–f). Short reaction time, environmentally friendly procedure, avoiding of cumbersome apparatus, and excellent yields are the main advantages of this procedure which makes it more economic than the other conventional methods.

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