Periphery Functionalized Dendronized Polymers as Catalysts for Organic Synthesis

Abstract

Catalysis is a significant aspect of green chemistry. It has become newlinethe pulse of current chemical technology and practice. The chemical newlineinitiatives depend on catalysts for almost all the processes. Catalysts are newlineessential for refining petroleum and oil, production of synthetic fibers and newlineplastics, processing of food, producing pharmaceuticals, scrubbing the air off newlinenoxious pollutants emitted from automobiles and factories, manufacturing newlinedifferent chemicals with a variety of uses etc. Thus, it is hard to imagine newlinethe world these days or truly civilized society without the impact of newlinecatalysis on the vital elements required for life. One of the immediate newlinechallenges facing chemists now is the design and use of environmentally newlinebenign catalysts for chemical reactions. A sustainable catalyst must newlinepossess specific features including low preparation cost, high selectivity, newlinehigh activity, high stability, good recyclability, and efficient recovery. Following the invention of dendrimers, the possibility of using them newlineas catalysts was recognized. Now, increased attention is given to other newlinedendritic structures like dendronized polymers or hyperbranched polymers newlinedue to their high functional group capacity in the low generation level newlineitself. Dendronized polymers (DPs) represent an interesting class of newlinemacromolecules in which the focal point of the dendrons is attached to the newlinependant functional groups at every repeating unit of a polymer backbone newline(core). Multiple branching levels characterize the architecture of these newlinemolecules in analogy to dendrimers. newline