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1. Conjugate Addition of Indoles to α,β-Unsaturated Ketones Using a Brønsted Acid Ionic Liquid as an Efficient Catalyst.

Author

Chuan-Ji Yu and Chen-Jiang Liu

Subjects
*INDOLE, *KETONES, *IONIC liquids, *SODIUM sulfate, *BIOACTIVE compounds, *CATALYSTS, *CHEMICAL inhibitors, *CHEMICAL engineering, *CHEMISTRY
Abstract

The Brønsted acid ionic liquid [PyN(CH2)4SO3H][p-CH3PhSO3] has been reported as an efficient catalyst for the Michael addition reaction of indoles to α,β-unsaturated ketones. Satisfactory results were obtained, with excellent yields and a simple experimental procedure. The catalyst could be recycled and reused up to three times without any noticeable decrease in the catalytic activity. [ABSTRACT FROM AUTHOR]

Published
2009
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