a green method for the synthesis of bis(indolyl)methanes, tris(indolyl)methanes and 3,3'-diindolyloxindole derivatives using β-cyclodextrin sulfuric acid in water
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abstract
β-cyclodextrin sulfuric acid as a green lewis acid catalyst has been applied for the preparation of bis(indolyl)methanes, tris(indolyl)methanes and 3,3'-diindolyloxindole derivatives by the condensation of indoles with various carbonyl compounds in aqueous media with high to excellent yields.
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Journal title:
caspian journal of chemistryجلد ۱، شماره ۱، صفحات ۱-۸
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