Dimethylformamide → HCID 86753116, compound

Participants

Reaction Steps

In a 1 L three-neck flask equipped with a stirrer, a thermometer and a reflux condenser, 43.6 g (0.1 mol) of 2,7-bis(bromomethyl)-9-normal-hexylfluorene, 78.7 g (0.3 mol) of triphenylphosphine, and 500 ml of dimethylformamide were introduced and reacted for 12 hours at reflux temperature. When the temperature was decreased to room temperature after reaction, and the reaction solution was dropped down slowly into a 3 L ethylether solvent being thoroughly stirred, to obtain a white solid. After filtering, this solid was washed several times with ethylether, and then dried sufficiently in a vacuum oven at a temperature of 40° C. As a result, 92.2 g (yield: 96%) of a white solid was obtained. [1H-NMR (CDCl3), δ 0.25(br, 3H, CH3), 1.60-1.24(m, 10H, CH2), 2.83(t, 1H, CH), 5.66-5.76(d, 4H, CH2Br), 6.76-7.11(m, 6H, aromatic fluorenyl), 7.49-7.81(m, 30H, aromatic)].

Provenance & Evidence