Water → 6,6'-[1,3-Phenylenedi(1,3,4-oxadiazole-5,2-diyl)]di(2,2'-bipyridine)

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Reaction Steps

0.63 g of 6-(2H-tetrazol-5-yl)-2,2′-bipyridine was dissolved in 10 ml of dehydrated pyridine, and 0.29 g of isophthaloyl dichloride was gradually added. Temperature was elevated to 115° C., and stirring was conducted for 6 hours under reflux. After cooling to room temperature, the reaction solution was poured into water, and a precipitated white solid was taken out by suction filtration, and washed with water. The solid obtained was vacuum dried at 80° C. for 20 hours, and purified with column chromatography (carrier: silica gel, eluting solution: chloroform/methanol=20/1) to obtain 0.62 g (yield 81%) of BpyOXDm. The product was identified with NMR analysis. The result of NMR analysis (CDCl3) was as follows. 9.071 ppm (1H), 8.639-8.714 ppm (6H), 8.325-8.477 ppm (4H), 8.037 ppm (2H), 7.756-7.854 ppm (3H), 7.330 ppm (2H).

Provenance & Evidence