Dimethylformamide → 2,3,6,7,10,1-Hexakis[6-(perfluoro)hexyloxy]-triphenylene

Participants

Reaction Steps

0.30 g (0.925 mmol) of 2,3,6,7,10,11-hexa-hydroxytriphenylene (3) was dissolved with 3 ml of DMF (dimethylformamide) in a 30 ml round-bottomed flask, and under stirring at room temperature, 0.27 g (6.75 mmol) of sodium hydride (60% in oil) was added little by little thereto. After the addition, the system was stirred for 10 minutes at room temperature and heated to ca. 80° C. on an oil bath, and 2.56 g (6.84 mmol) of 6-(perfluoroethyl)hexyl p-toluenesulfonate (2) dissolved in 2 ml of DMF was gradually added dropwise thereto. After the dropwise addition, the system was stirred for 5 hours under heating at the same temperature. After the reaction, the system was cooled to room temperature and stirred while adding chloroform and water thereto. The chloroform layer was condensed and purified by silica gel column chromatography with a chloroform eluent. After distilling off the chloroform, the resultant crystal was further purified by silica gel column chromatography with a toluene eluent and recrystallized from an acetone-methanol mixture solvent to obtain 0.52 g (yield=36.6%) of 2,3,6,7,10,1-hexakis[6-(perfluoro)hexyloxy]-triphenylene (1-5). The compound exhibited the following phase transition series.

Provenance & Evidence