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Diphenylacetylene is often used as a building block in organic and organometallic chemistry. It acts as dienophile and under goes Diels-Alder reaction with tetraphenylcyclopentadienone to prepare hexaphenylbenzene. It acts as a precursor in the preparation of 3-alkoxycyclopropene by reacting with benzal chloride in the presence of potassium t-butoxide.
For an example of use as a Diels-Alder dienophile, see: Org. Synth. Coll., 5, 604 (1973).
For transfer of methylene groups from dimsyl sodium, giving 2,3-diphenylbutadiene, see: Org. Synth. Coll., 6, 531 (1988).
Can be oxidized to benzil using iodine-DMSO: Synthesis, 131 (1991).
Shi, Y.; Li, G.; Zhao, B.; Chen, Y.; Chao, P.; Zhang, H.; Wang, X.; Wang, T. Synthesis and optical properties of cationic cyclopentadienyl iron complexes with diphenylacetylene chromophores. Inorg. Chim. Acta 2015, 427, 259-265.
Le, K. V.; Aya, S.; Ogino, S.; Okano, K.; Araoka, F.; Takezoe, H. Large Twist Elastic Constant in Diphenylacetylene-Core-Based Liquid Crystals. Mol Cryst Liq Cryst 2015, 614 (1), 124-127.