The effect of reaction time on the preparation of 9-fluorene methanol

The effect of reaction time on the preparation of 9-fluorene methanol: fixed industrial fluorene dosage 83.0g (0.50mol), ethyl formate dosage of 500ml, sodium hydride dosage of 65g (2.71mol), heating and refluxing reaction, after investigation found that the yield of fluorene methanol varies with The reaction time increases as the reaction time increases. When the reaction proceeds to 12h, the reaction is basically completed. Further extension of the time has little effect on the yield of fluorene methanol, so the reaction time is set to 12h.