Palladium catalysis has achieved the status of an indispensable tool for both common and state-of-the art organic synthesis.Among basic types of palladium catalysed transformations, the Heck reaction and related chemistry occupies a special space. Heck reaction is the catalytic arylation and alkenylation of olefins. The reaction presents one of the simplest ways to obtain variously substituted olefins, dienes, and other unsaturated compounds. Aryl, benzyl, and styryl halides react with olefinic compounds in the presence of hindered amines and a catalytic amount of palladium ions to form vinyl derivatives in which the aryl, ben-zyl, or styryl group has replaced a vinyl hydrogen of the original olefin. To satisfy both recyclability and reactivity, immobilization of a reactive homogeneous catalyst was devised by binding the Pd catalyst on a polymer. Polycarbosilane is an active support for the heterogeneous catalysis. The PCS shows high thermal stability and have crosslinked structure. By altering the monomers and reaction time, it is possible to get sufficient crosslinking and active sites in the polymer. The metal salts react with the active sites of the PCS and stable bonds are formed between them, thus developing an efficient heterogeneous catalyst. Pd(OAc)2 was chosen as Pd source for the current study. For comparison, catalytic activities of Pd ions supported on SBA-15 (Pd-SBA), activated charcoal (Pd-C) and amorphous silica (Pd-SiO2) were also investigated. Pd-PCS show high stability, negligible metal leaching and can be reused with same activity. This indicates the superiority of PCS with other supports under consideration.