This work represents an efficient and unique phosphine-free approach for the polystyrene embedded Schiff-base palladium catalyzed diaryl urea synthesis and Suzuki-Miyaura cross-coupling reaction by reductive carbonylation process. The careful instrumental investigations with FE-SEM, TEM, EDAX, TGA, UV–Vis, FTIR, AAS, and elemental analysis precisely characterized the developed heterogeneous catalyst. Reaction parameters, like catalytic natures, starting materials, reaction environment, and solvent were examined sequentially. The present work has been adequately addressed to account for the generation and characterization of a new polymer bound Pd-catalyst and using it in the synthesis of diaryl ureas and diaryl ketones, with no substantial decay of catalytic activity.

这项工作代表了聚苯乙烯嵌埋的席夫碱钯催化的二芳基尿素合成和通过还原羰基化过程的铃木-宫浦交叉偶联反应的有效且独特的无膦方法。用FE-SEM，TEM，EDAX，TGA，UV-Vis，FTIR，AAS和元素分析进行​​的仔细仪器研究，精确地表征了已开发的多相催化剂。依次检查反应参数，如催化性质，起始原料，反应环境和溶剂。目前的工作已得到充分解决，以说明新型聚合物键合的Pd催化剂的生成和表征，并将其用于合成二芳基脲和二芳基酮，而催化活性基本不降低。