Silica sulfuric acid a novel and heterogeneous catalyst for the synthesis of some new oxindole derivatives

Silica sulfuric acid catalyzed efficiently the electrophilic substitution reaction of an indoles with various isatins in dicholoro methane to afford the corresponding oxindoles derivatives in high yields under r.t. The catalyst exhibited remarkable reusable activity.

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Bibliographic Details
Published inCatalysis communications Vol. 7; no. 10; pp. 752 - 755
Main Authors Azizian, Javad, Mohammadi, Ali A., Karimi, Narges, Mohammadizadeh, Mohammad R., Karimi, Ali R.
Format Journal Article
LanguageEnglish
Published AMSTERDAM Elsevier B.V 01.10.2006
Elsevier
Subjects
Chemistry
Chemistry, Physical
Heterogeneous catalyst
Indole
Isatin
Oxindole
Physical Sciences
Science & Technology
Silica sulfuric acid
Oxindole
Heterogeneous catalyst
Silica sulfuric acid
Indole
Isatin
heterogeneous catalyst
oxindole
silica sulfuric acid
indole
isatin
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Summary:Silica sulfuric acid catalyzed efficiently the electrophilic substitution reaction of an indoles with various isatins in dicholoro methane to afford the corresponding oxindoles derivatives in high yields under r.t. The catalyst exhibited remarkable reusable activity.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2006.01.026