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Note | Regular issue | Vol 68, No. 2, 2006, pp.331-338
Published online, 16th December, 2005
DOI: 10.3987/COM-05-10587
A New Catalytic Application of a Keggin Acid in the Synthesis of Symmetrical Bis(indolyl)alkanes

Manas Chakrabarty,* Ajanta Mukherji, Sulakshana Karmakar, Shiho Arima, and Yoshihiro Harigaya

*Department of Chemistry, Bose Institute, 93/1, A. P. C. Road, Kolkata-700009, India


Silicotungstic acid, H4SiW12O40, an important Keggin heteropoly acid, efficiently catalysed the reaction of indoles with aryl aldehydes in ethyl acetate solution at room temperature to furnish symmetrical bis(indolyl)alkanes expeditiously.