In this review, we have focused our attention on the application of conjugated polymers as heterogeneous catalyst in organic transformations, which appeared in the literature. Conjugated polymers have attracted interest as promising materials for catalyst support for a decade. Conjugated polymers having heteroatom in their backbone can be easily doped with acids like Bronsted, organic, Lewis and heteropoly acids. These conjugated polymers containing acids can act as polymer based solid acid catalyst in organic synthesis. Use of conjugated polymer salts, complexes and metal composites in organic transformations is discussed and the advantages of conjugated polymers in catalysis field are brought out in this review.
Keywords: polyaniline, THP group, oxidizing agents, Mannich-Type Reactions, Pechmann Reaction, Coumarins
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