ABSTRACT
Potassium exchanged layered zirconium phosphate catalyzed Knoevenagel condensation of aldehydes and active methylene compounds gave the corresponding E configurated olefinic derivatives in solvent free conditions.
ACKNOWLEDGMENT
This work was supported by M.U.R.S.T. “Progetto Chimica dei Composti Organici di Interesse Biologico”, and the C.N.R. (Rome) is gratefully acknowledged. We thank Prof. U. Costantino for helpfull discussions.