State Of The Art Of Supported Phase Transfer-Catalysts Onium Salt-Based

This review describes the advances of heterogenous phase-transfer catalysts onium-based and their importance from a sustainable point of view. Although heterogeneous phase-transfer catalysts have shown incredible advantages in many organic reactions, examples of supported phase-transfer catalysts onium-based are still limited. In this review, we will examine the most common supports, including polymers, clays, and inorganic materials. Additionally, new recent developments in carbon materials application as efficient heterogeneous phase-transfer catalysts in water will be reported, opening a new route toward green and sustainable procedures. Furthermore, considering the ever-growing interest in asymmetric synthesis we wish to discuss the important achievements in the field of chiral heterogeneous phase-transfer catalysts. Phase-transfer catalysis has been recognized as a green procedure. This review highlights the advances of supported phase-transfer catalysts onium-based focusing the attention on various classes of supported materials such as polymer-supported catalysts, clay-based, new carbonaceous material considering also the asymmetric transformations and underling the green advantages of these procedures. image