Synthesis
3.65 g (10.0 mmol) of [2,2':6',2''-terpyridine]-4,4',4''-tricarboxylic acid (supplied by Tateyama Kasei) was placed in a 500 mL eggplant flask. 5 mL of concentrated sulfuric acid and 300 mL of methanol were added to the flask and the mixture was heated to reflux for 6 hours. After completion of the reaction, the reaction solution was filtered and the resulting solid was dried under vacuum to give 3.42 g of trimethyl 2,2':6',2''-terpyridine-4,4',4''-tricarboxylate.
References
[1] Dalton Transactions, 2011, vol. 40, # 17, p. 4497 - 4504
[2] Chemical Communications, 1997, # 18, p. 1705 - 1706
[3] Journal of the American Chemical Society, 2001, vol. 123, # 8, p. 1613 - 1624
[4] RSC Advances, 2013, vol. 3, # 48, p. 26035 - 26046
[5] Inorganica Chimica Acta, 2016, vol. 442, p. 158 - 166
