Tailor-Made POLITAG-Pd⁰ Catalyst for the Low-Loading Mizoroki–Heck Reaction in ?-Valerolactone as a Safe Reaction Medium

In this contribution, we have reported our study on the fine-tuned design and synthesis of new POLITAGs-Pd0 (POLymeric Ionic TAG) catalytic systems with intention defining highly efficient heterogeneous palladium catalysts stabilized by ionic tags able to operate at a very low loading while being fully recoverable/reusable. By varying both support ratio between metal immobilized tag, accessed five different that been characterized (EA, XPS, TEM, HR-TEM) investigate their morphological differences. The efficiency newly prepared materials was then tested compared in representative Mizoroki–Heck cross-coupling reaction, universally investigated widely useful process. A close correlation catalyst performances has highlighted. best system POLITAG-Pd0-HM features high TOF value (26,786 h–1), affording final products isolated yields using as little only 0.0007 mol % Pd. Moreover, activity coupled use ?-valerolactone (GVL) green reaction medium led definition waste-minimized protocol. designed utilized Amiloxate, used sunscreen agent, could be negligible contamination E-factor.