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Efficient potassium hydroxide promoted P-arylation of aryl halides with diphenylphosphine

Yang Zhou,Changchun Liu,Zhihao Shen,Bencai Dai,Jin Chen

A simple synthetic method of triarylphosphine compounds by KOH-promoted P-Arylation reaction of aryl halides with diphenylphosphine is presented. Notably, this transformation could smoothly proceed with high yields under transition-metal-free and mild reaction conditions. In addition, this protocol is valuable for industrial application due to the convenient operation and readily accessible aromatic halides. A possible explanation of the reaction mechanism was proposed based on the experimental data.