scholarly journals 1-Methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium Chloride as a New and Green Ionic Liquid Catalyst for One-Pot Synthesis of Dihydropyrimidinones under Solvent-Free Condition

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Sami Sajjadifar ◽  
Eshagh Rezaee Nezhad ◽  
Ghasem Darvishi
Keyword(s):  
Ionic Liquid ◽  
Reaction Times ◽  
Solvent Free ◽  
One Pot ◽  
Simple Method ◽  
Free Condition ◽  
Multicomponent Condensation ◽  
Acidic Ionic Liquid ◽  
Solvent Free Condition ◽  
High Yields

An efficient and simple method for the preparation of 1-methyl-3-(2-(sulfooxy)ethyl)-1H-imidazol-3-ium chloride{(MSEI)Cl}as an acidic ionic liquid is described. One-pot multicomponent condensation of 1,3-dicarbonyl compounds, urea/thiourea and aldehydes at 80∘C affords the corresponding compounds in high yields and in short reaction times by using (MSEI)Cl.

scholarly journals A Facile One-Pot Solvent-Free Synthesis of 1,2-Dihydro-1-arylnaphtho[1,2-e][1,3]oxazine-3-ones Catalyzed by Wet Cyanuric Chloride

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Firouzeh Nemati ◽  
Azam Beyzai
Keyword(s):  
Organic Solvent ◽  
Simple Procedure ◽  
Reaction Times ◽  
Solvent Free ◽  
Cyanuric Chloride ◽  
One Pot ◽  
Free Condition ◽  
Solvent Free Condition ◽  
High Yields ◽  
Solvent Free Synthesis

A novel one-pot synthesis of 1,2-dihydro-1-arylnaphtho[1,2-e][1,3]oxazine-3-ones by condensation of a variety of aldehydes withβ-naphthol and urea or thiourea in the presence of wet cyanuric chloride under solvent-free condition has been described. High yields, simple procedure, easy workup, short reaction times, and avoiding the use of organic solvent are the advantages of this green methodology.

scholarly journals One-Pot Synthesis of Benzoxanthenes in Solvent Free Condition using Chloroaluminate Ionic Liquids as Catalyst

2009 ◽  
Vol 5 (1) ◽  
pp. 575-580
Author(s):  
Sugat Kirti ◽  
Dhanraj T. Masram
Keyword(s):  
Ionic Liquid ◽  
Reaction Times ◽  
Catalytic Amount ◽  
Solvent Free ◽  
Imidazolium Chloride ◽  
One Pot ◽  
Free Condition ◽  
Solvent Free Condition ◽  
Solvent Free Conditions ◽  
One Pot Condensation

A mild and efficient method has been developed for the preparation of 14-aryl-14H dibenzo[a,j]xanthenes from one-pot condensation of aldehydes with β-naphthol using catalytic amount of Chloroaluminate ionic liquid (imidazolium chloride·3AlCl3 or pyridiniumchloride·3AlCl3) under thermal solvent-free conditions. Excellent yields, short reaction times, easy workup and reusability of the catalyst as well as solvent free conditions are advantages of this procedure.

A highly effective and mild protocol for the production of 1-thioamidoalkyl-2-naphthols using 1,3-disulfonic acid imidazolium trifluoroacetate as a dual-functional catalyst

2018 ◽  
Vol 73 (5) ◽  
pp. 289-293 ◽  
Author(s):  
Mostafa Karami ◽  
Abdolkarim Zare
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
Reaction Times ◽  
Solvent Free ◽  
Disulfonic Acid ◽  
One Pot ◽  
Mild Conditions ◽  
Dual Functional ◽  
Highly Effective ◽  
High Yields

AbstractA solvent-free protocol for the production of 1-thioamidoalkyl-2-naphthols via a one-pot multi-component reaction of arylaldehydes with 2-naphthol and thioacetamide using the ionic liquid 1,3-disulfonic acid imidazolium trifluoroacetate ([Dsim][TFA]) is described. Furthermore, a plausible and attractive mechanism based on the dual functionality of the catalyst is proposed. Because of the dual functionality of [Dsim][TFA] (possessing acidic and basic sites), it is found to be generally highly effective, affording the products in high yields and short reaction times under mild conditions. We claim that this is one of the best protocols for the synthesis of 1-thioamidoalkyl-2-naphthols (in terms of yield, temperature, conditions, and/or the reaction time).

scholarly journals KF supported on montmorillonite K10 catalyzed one-pot synthesis of 4H-pyran derivatives under ultrasound irradiation and solvent-free condition

2016 ◽  
Vol 19 (1) ◽  
pp. 5-10
Author(s):  
Dung Duc Pham ◽  
Huyen Ngoc Chau ◽  
Thach Ngoc Le
Keyword(s):  
Aromatic Aldehyde ◽  
Mild Condition ◽  
Ultrasound Irradiation ◽  
Solvent Free ◽  
One Pot ◽  
Free Condition ◽  
Montmorillonite K10 ◽  
Solvent Free Condition ◽  
High Yields ◽  
Short Time

KF supported on montmorillonite K10 catalyzed three-component cyclocondensation of aromatic aldehyde, cyclohexan-1,3-dione and malononitrile under ultrasound irradiation and solvent-free condition to give the corresponding 4H-pyrans in high yields. This method provides several advantages such as short time, mild condition and the catalyst can be recycled easily.

scholarly journals Efficient Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones using Ionic Liquid Pyrazinium Di(hydrogen sulfate) {Py(HSO4)2} as a Novel, Green and Homogeneous Catalyst

2017 ◽  
Vol 56 (4) ◽  
Author(s):  
Abdolkarim Zare ◽  
Roghayyeh Khanivar ◽  
Marzieh Hatami ◽  
Mohammad Mokhlesi ◽  
Mohammad Ali Zolfigol ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Reaction Times ◽  
Aromatic Aldehydes ◽  
Homogeneous Catalyst ◽  
Hydrogen Sulfate ◽  
Efficient Synthesis ◽  
One Pot ◽  
Acidic Ionic Liquid ◽  
The One ◽  
High Yields

An efficient and simple solvent-free procedure for the synthesis of 12-aryl-8,9,10,12-tetrahydrobenzo[<em>a</em>]-xanthen-11-one derivatives <em>via</em> the one-pot multi-component condensation of dimedone with aromatic aldehydes and β-naphthol in the presence of protic acidic ionic liquid pyrazinium di(hydrogen sulfate) {Py(HSO<sub>4</sub>)<sub>2</sub>} as a green and homogeneous catalyst is described. All reactions proceed efficiently, and the title compounds are produced in high yields and in short reaction times.

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