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Title
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Efficient synthesis of 3,3-di(indolyl)oxindoles catalyzed by sulfonic acid-functionalized mesoporous silica nanoparticles (SAMSNs) in aqueous media
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Type
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JournalPaper
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Keywords
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3,3-di(indolyl)oxindoles Indole Sulfonic acid-functionalized mesoporous silica nanoparticles (SAMSNs
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Abstract
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An efficient protocol has been developed for the aqueous-mediated synthesis of 3,3-di(indolyl)oxindole derivatives via the electrophilic substitution reaction of indoles with various isatins using sulfonic acid-functionalized mesoporous silica nanoparticles (SAMSNs) as a recoverable heterogeneous acid catalyst. This catalyst can be reused several times without significant loss of activity.
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Researchers
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mahmood tajbakhsh (Third Researcher), Yaghoub Sarrafi (Second Researcher), Ebrahim Mehrasbi (First Researcher)
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