An Efficient Synthesis of Bis(indolyl)methanes (BIAs) Catalyzed by A Recyclable Solid Superacid SO42-/TiO2 Under Solvent-Free Condition

Publisher： Bentham Science Publishers

E-ISSN： 1875-6255|3|5|374-378

ISSN： 1570-1786

Source： Letters in Organic Chemistry, Vol.3, Iss.5, 2006-05, pp. : 374-378

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Abstract

Green, mild and efficient electrophilic substitution reactions of indoles with various aldehydes were carried out using solid superacid SO4 2-/TiO2 as recyclable catalyst, which afforded the corresponding bis(indolyl)methanes in excellent yields.

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