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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 41, 2010 - Issue 1
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Original Articles

Mild and Efficient Synthesis of Benzimidazole Using Lead Peroxide Under Solvent-Free Conditions

, , &
Pages 58-62 | Received 02 Sep 2009, Published online: 14 Dec 2010
 

Abstract

Benzimidazole derivatives have been synthesized using a catalytic amount of lead peroxide (PbO2) at room temperature with excellent yields. The remarkable selectivities under mild, neutral and solvent-free conditions and use of a commercially available, inexpensive catalyst are attractive features of this method.

ACKNOWLEDGMENT

The authors acknowledge the partial support of this work by Prof. B. P. Bandgar, Vice Chancellor, University of Solapur, India.

Notes

a The substrate was treated with benzaldehyde (2 mmol) using 0.1 mmol of PbO2 in solvent-free conditions and at room temperature.

b All products were identified by their IR and 1H NMR spectra.

c Isolated yields.

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