Reaction Kinetics and Catalysis Letters, Vol.91, No.1, 169-175, 2007
A simple and efficient protocol for the synthesis of substituted comarins catalyzed by stannic(IV) chloride under solvent-free condition
Stannic(IV) chloride has been demonstrated to be an efficient catalyst for the Pechmann condensation of phenols and beta-ketoesters to produce structurally diverse coumarins in a solvent-free protocol. The practical and simple method led to excellent yields of the coumarin derivatives under mild conditions and within short times.