anhydrous potassium carbonate.-A mixture of 1 (5 g) and dry phenol (0.18 mol) was heated under reflux in the presence of dry potassium carbonate (2.5 g) for 16 h, and then filtered, Insoluble material was washed with acetone, and the combined filtrate and washings were diluted with dichloromethane(100 mL) and poured into water (100 mL). The dichloromethane layer was washed with M sodium hydroxide until the washings were ...
