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Bulk and supported tungstophosphoric acid as friendly, efficient, recyclable catalysts for the synthesis of bis-indolylmethanes under solvent-free conditions

✍ Scribed by Hamid Aliyan; Razieh Fazaeli; Hamid Javaherian Naghash; Ahmad Reza Massah; Ahmad Reza Momeni; Zohreh Iravani

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
208 KB
Volume
20
Category
Article
ISSN
1042-7163

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✦ Synopsis

The treatment of indole with structurally diverse aldehydes in the presence of catalytic amount of inorganic-supported polyoxometalates, heterogeneous, reusable and efficient catalysts at room temperature gave the corresponding bisindolylmethanes in excellent yields and shorter reaction times under solvent-free conditions. The catalyst can be reused for several times, but it will be less active.

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