ABSTRACT
A solvent free and expeditious method for tetrahydropyranylation and detetrahydropyranylation of alcohols, phenols and thiols is described using hydrated zirconia and 3,4-dihydro-2H-pyran (DHP). A comparison of this microwave-accelerated reaction with conventional heating condition is also presented.
ACKNOWLEDGMENTS
We wish to thank CSIR New Delhi for the award of Research Associateship to ASG and senior research fellowship to DPS.