An efficient synthesis of 3-indolyl-3-hydroxy oxindoles and 3,3-di(indolyl)indolin-2-ones catalyzed by sulfonated β-CD as a supramolecular catalyst in water.

ABSTRACT: Sulfonated-β-cyclodextrin (β-CD-SO₃H) promoted efficient and fast electrophilic substitution reaction of indoles with various isatins reflux in water is reported affording various 3-indolyl-3-hydroxy oxindoles and 3,3-di(indolyl)indolin-2-ones in good to excellent yields in short reaction time.

SUBMITTER: Tayade YA 

PROVIDER: S-EPMC7111843 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature