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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 41, 2011 - Issue 3
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Original Articles

Caro's Acid–Silica Gel: An Efficient and Versatile Catalyst for the One-Pot Synthesis of Tetrahydrobenzo[b]pyran Derivatives

, , &
Pages 436-440 | Received 26 Aug 2009, Published online: 13 Jan 2011
 

Abstract

An efficient one-pot synthesis of tetrahydrobenzo[b]pyran is described. This involved the three-component reaction of aromatic aldehydes, molononitrile, and dimedone in the presence of a catalytic amount of Caro's acid supported on silica gel in ethanol/water under reflux.

ACKNOWLEDGMENT

We are grateful to Azzahra University Research Council for partial support of this work.

Notes

a All the products were characterized by (GC-mass and IR) and comparison of melting points with those reported in the literature.

b Yield refers to the pure isolated products.

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