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.