Hydrochloric Acid → HCID 21894396, compound

Participants

Reaction Conditions

Reaction Steps

A 4-necked 5-liter flask, equipped with a mechanical stirrer, a thermometer, and a condenser, is charged with methanol (800 g). Potassium hydroxide (440 g) is added in portions to the methanol solution. After the addition, the solution is cooled to 20° C. To this stirring solution, 1,1,1-tribromo-2,2-(4-hydroxyphenyl)ethane (420 g) is added in portions. The reaction temperature is kept below 40° C. After the addition, the temperature is raised to 50° C. and kept for 2 hours. The reaction mixture is cooled to room temperature and neutralized with 25% HCl solution. After the neutralization, the mixture is heated to reflux and water is added. The mixture is allowed to cool to the room temperature. The precipitates formed are filtered and dried to afford 1,1-dibromo-2,2-bis(4-hydroxyphenyl)ethene.

Provenance & Evidence