Abstract
Reaction of aldehydes and 4-hydroxycoumarin in the presence of catalytic amount of silica-supported Preyssler nanoparticles led to synthesis of bis-coumarins in excellent yields.
ACKNOWLEDGMENT
The authors are thankful to Azzahra University Research Council for the partial financial support.
Notes
a Yields of isolated products.
a Yields refer to isolated products.
a Yields refer to isolated products.
a Yields refer to isolated products.
a Yields refer to isolated products.
a Yields of isolated products.
a Yields refer to isolated products.