4.3 Article

Efficient synthesis of bis- and tris-indolylalkanes catalyzed by a Bronsted acid-surfactant catalyst in water

Journal

SYNTHETIC COMMUNICATIONS
Volume 38, Issue 17, Pages 2870-2880

Publisher

TAYLOR & FRANCIS INC
DOI: 10.1080/00397910801979387

Keywords

bis-indolylalkane; Bronsted acid-surfactant catalyst; 3-substituted indoles; water media

Funding

  1. Council of Scientific and Industrial Research, New Delhi

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A simple and efficient synthesis of bis- and tris-indolylalkanes from carbonyls (aldehydes/ketones) and indoles with excellent yields in the presence of dodecylsulphonic acid (DSA) in water at room temperature is described. The catalyst is also applicable for the synthesis of 3,3-di(3-indolyl)oxindoles. The dodecylsulphonic acid acts as both Brnsted acid and surface-active agent in the reaction mixture.

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