Knoevenagel Condensations Catalyzed by New Oil Shale Recyclable Catalyst at Room Temperature and Assisted by Ultrasounds Irradiations

Functionalized alkenes were successfully synthesized via a clean procedure in short time by using new recycled heterogeneous catalyst prepared from Moroccan oil shale, this is characterized different technics such XRD, BET-BJH, MEB-EDS, and TGA, before it’s has been used the Knoevenagel condensation between aldehydes active methylenes. The results showed that coupling with ultrasound irradiations could improve catalytic system transformation achieving products very time, clearly be considered as excellent recyclable support condensation.