反应详情

To a solution of 23.6 grams of 2-phenyl-3-acetylbenzofuran in 70 milliliters of isopropanol was added 4.2 grams of paraformaldehyde, 10 grams of pyrrolidine and 30 milliliters of a saturated solution of hydrogen chloride in ethanol and the mixture was heated under reflux at its boiling point for 10 hours.

1. temperaturethe mixture was heated
2. temperatureunder reflux at its boiling point for 10 hours