反应详情

A solution of hexamethylenetretramine (1.87 mmol, 0.27 g) in trifluoroacetic acid (1.4 cm3) was added to benzo 15-crown-5 ether (1.87 mmol, 0.5 g) under nitrogen; the mixture was heated to reflux for 12 hours.

1. temperaturethe mixture was heated
2. temperatureto reflux for 12 hours