
An efficient and convenient method to synthesize highly functionalized 3,7′-bisindole derivatives has been developed via a Michael addition and cyclic condensation reaction of heterocyclic ketene aminals (HKAs) with 2-(1H-indol-3-yl)cyclohexa-2,5-diene-1,4-dione derivatives in ethanol-based solvents at room temperature. This strategy provides an efficient, environmentally friendly approach for easy access to various novel 3,7′-bisindole derivatives in moderate to good yields.
Indoles, Molecular Structure, 3,7′-bisindoles, Organic chemistry, Stereoisomerism, 3,7′-bisindoles; Michael addition; condensation reaction; heterocyclic ketene aminals, heterocyclic ketene aminals, Article, condensation reaction, QD241-441, Heterocyclic Compounds, Michael addition, Nitriles, Solvents, Imines
Indoles, Molecular Structure, 3,7′-bisindoles, Organic chemistry, Stereoisomerism, 3,7′-bisindoles; Michael addition; condensation reaction; heterocyclic ketene aminals, heterocyclic ketene aminals, Article, condensation reaction, QD241-441, Heterocyclic Compounds, Michael addition, Nitriles, Solvents, Imines
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