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Among discotics, triphenylene derivatives have great potential in supramolecular and material chemistry. These derivatives often form columnar mesophases and thus are promising candidates for various applications such as organic light-emitting diodes, organic field-effect transistors, organic photovoltaic cells and gas sensors. However, the synthesis of these triphenylene derivatives from terphenyls on a large scale using conventional oxidizing agents is inconvenient, since these agents are insoluble in most of the organic solvents. Keeping in view the importance of triphenylene and limitation of using conventional oxidizing agents, we developed a simple and convenient synthetic strategy for cyclization of terphenyl derivatives having dimethyl-tert-butylsilyloxy groups (OTBS) groups to symmetrically and unsymmetrically substituted triphenylenes derivatives 1 and 2 in presence of tetrabutylammonium fluoride …