Journal Title
Title of Journal: Monatsh Chem
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Abbravation: Monatshefte für Chemie - Chemical Monthly
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Publisher
Springer Vienna
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Authors: Valiollah Mirkhani Majid Moghadam Shahram Tangestaninejad Iraj MohammadpoorBaltork Mohammad Mahdavi
Publish Date: 2009/11/20
Volume: 140, Issue: 12, Pages: 1489-1494
Abstract
A highly sulfonated carbon as an efficient recyclable nontoxic and green solid acid catalyst was readily synthesized by simultaneous sulfonation dehydration and carbonization of sucrose in sulfuric acid and was characterized by FTIR TGDTG XRD and CHNS analysis neutralization potentiometric titration and SEM techniques This new catalyst was used for preparation of 2oxazolines and bisoxazolines by reaction of βaminoethanol with nitriles under reflux conditions Sonication of this system enhanced the catalytic activity of the carbonbased solid acid and led to higher product yields and shorter reaction times Another advantage of the system under ultrasonic irradiation is the ability to carry out largescale reactions In two cases the catalyst was reused several times without loss of its activity
Keywords:
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