@article{dawood_hassaneen_abdelhadi_ahmed_mohamed_2014,  title={Synthesis of unsymmetrical aryl-ethynylated benzenes via regiocontrolled Sonogashira reaction of 1,3,5-tribromobenzene},  volume={25},  ISSN={0103-5053},  url={https://doi.org/10.5935/0103-5053.20140163},  DOI={10.5935/0103-5053.20140163},  number={9},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Dawood, Kamal M. and Hassaneen, Hamdi M. and Abdelhadi, Hyam A. and Ahmed, Mohamed S. M. and Mohamed, Mohamed A.-M.},  year={2014},  month={Sep},  pages={1688–1695} }