Efficient and high turnover homocoupling reaction of aryl iodide by the use of palladacycle catalyst. A convenient way to prepare poly-p-phenylene

Article abstract of DOI:10.1016/S0040-4039(98)01767-5

Monoiodoarenes undergo reductive coupling to produce biaryls in high yields in the presence of less than 0.1 mol % of palladacyle and N,N- diisopropylethylamine in DMF at 100°C. Under similar reaction conditions, p- diiodobenzene produces poly-p-phenylene in greater than 85% isolated yields.