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Silica sulfuric acid: A versatile and reusable heterogeneous catalyst for the synthesis of oxazolines and imidazolines under various reaction conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
52274 46867 2008 8 PDF Available
Title
Silica sulfuric acid: A versatile and reusable heterogeneous catalyst for the synthesis of oxazolines and imidazolines under various reaction conditions
Abstract

A practical, efficient and inexpensive method for the synthesis of 2-oxazolines and 2-imidazoline from the reaction of nitriles with β-aminoalcohols and ethylenediamine (EDA), respectively, using silica sulfuric acid as a heterogeneous catalyst under reflux conditions is reported. This catalyst can be successfully applied for the chemoselective conversion of dicyanobenzenes to their corresponding mono- and bis-oxazolines. The application of ultrasonic irradiation improved the yields and reduced the reaction times. The use of silica sulfuric acid catalyst is feasible because of its easy preparation, easy handling, stability, easy recovery, reusability, good activity and eco-friendly.

Keywords
Oxazoline; Imidazoline; Nitrile; Silica sulfuric acid; Ultrasonic irradiation
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Silica sulfuric acid: A versatile and reusable heterogeneous catalyst for the synthesis of oxazolines and imidazolines under various reaction conditions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 5, 20 March 2008, Pages 894–901
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us