Citation: Tanaka, Shinya; Umetsu, Takafumi; Nebuya, Satoru; Morohashi, Naoya; Hattori, Tetsutaro (2014). 1,3-Diiodocalix[4]arene: Synthesis by Ullmann-Type Iodination of 1,3-Bistriflate Ester of Calix[4]arene, Conformational Analysis, and Transformation into 1,3-Dicarboxy-, Diformyl-, and Dialkylcalix[4]arenes.. The Journal of organic chemistry, 80, pp. 1070-.