反应详情

To a round bottom flask equipped with a stirring bar and a condenser was added 4-chloro-6-methoxy-2-methyl-2H-pyran-3(6H)-one and acetic acid and the reaction mixture heated to reflux for an hour. Maltol (65%) was obtained on cooling.

1. customTo a round bottom flask equipped with a stirring bar and a condenser
2. temperaturethe reaction mixture heated
3. temperatureto reflux for an hour