A regioselective one-pot aza-Friedel–Crafts reaction for primary, secondary and tertiary anilines using a heterogeneous catalyst

2017 ◽  
Vol 19 (23) ◽  
pp. 5683-5690 ◽  
Author(s):  
Giovanna Bosica ◽  
Roderick Abdilla
Keyword(s):  
Heterogeneous Catalyst ◽  
Environmentally Friendly ◽  
Silicotungstic Acid ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Amberlyst 15

An environmentally friendly one-pot multicomponent synthesis of 3-substituted indoles, catalysed by silicotungstic acid on Amberlyst 15 under green, neat conditions.

Facile One-Pot Multicomponent Synthesis ofβ-Acetamido Ketones withAmberlyst-15 as Heterogeneous Catalyst

2006 ◽  
Vol 89 (12) ◽  
pp. 3109-3111 ◽  
Author(s):  
Biswanath Das ◽  
Kongara Ravinder Reddy
Keyword(s):  
Heterogeneous Catalyst ◽  
Multicomponent Synthesis ◽  
One Pot

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 An Efficient One-Pot Green Protocol for the Synthesis of 5-Unsubstituted 3,4-Dihydropyrimidin-2(1H)-Ones Using Recyclable Amberlyst 15 DRY as a Heterogeneous Catalyst via Three-Component Biginelli-Like Reaction

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Srinivasa Rao Jetti ◽  
Divya Verma ◽  
Shubha Jain
Keyword(s):  
Heterogeneous Catalyst ◽  
Solid Acid ◽  
Environmentally Benign ◽  
Chemical Waste ◽  
One Pot ◽  
Efficient Catalyst ◽  
Amberlyst 15 ◽  
Green Protocol ◽  
Recyclable Heterogeneous Catalyst ◽  
Work Up

An environmentally benign green protocol for the synthesis of 5-unsubstituted 3,4-dihydropyrimidin-2(1H)-ones using Amberlyst 15 DRY as a recyclable catalyst has been developed. The use of resinous, nontoxic, thermally stable, and inexpensive Amberlyst 15 DRY, as a recyclable heterogeneous catalyst, makes the process simple with negligible chemical waste. Among the various solid acid catalysts Amberlyst 15 DRY was found to be the most efficient catalyst with regard to reaction time, yield, and ease of work-up procedure.

Eu2O3 modified CeO2 nanoparticles as a heterogeneous catalyst for an efficient green multicomponent synthesis of novel phenyldiazenyl-acridinedione-carboxylic acid derivatives in aqueous medium

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91133-91140 ◽  
Author(s):  
P. Sagar Vijay Kumar ◽  
L. Suresh ◽  
T. Vinodkumar ◽  
G. V. P. Chandramouli
Keyword(s):  
Carboxylic Acid ◽  
Aqueous Medium ◽  
Heterogeneous Catalyst ◽  
Carboxylic Acids ◽  
Ceo2 Nanoparticles ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Dicarbonyl Compounds ◽  
Multicomponent Coupling

Synthesis of phenyldiazenyl-acridinedione-carboxylic acids by a one-pot multicomponent coupling of 1,3-dicarbonyl compounds, substituted-phenyl-diazenyl-benzaldehydes and glycine using Eu2O3 modified CeO2 as the catalyst in aqueous medium.

scholarly journals Efficient one-pot synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by a new heterogeneous catalyst based on Co-functionalized Na+-montmorillonite

RSC Advances ◽  
2017 ◽  
Vol 7 (29) ◽  
pp. 17732-17740 ◽  
Author(s):  
Alireza Khorshidi ◽  
Khalil Tabatabaeian ◽  
Hashem Azizi ◽  
Mehraneh Aghaei-Hashjin ◽  
Esmayeel Abbaspour-Gilandeh
Keyword(s):  
Heterogeneous Catalyst ◽  
Environmentally Friendly ◽  
Solvent Free ◽  
One Pot ◽  
One Pot Synthesis

A facile and efficient solvent-free protocol for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones by using Co@imine-Na+-MMT as a new, environmentally friendly and reusable heterogeneous catalyst is reported.

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