5802 NEW COMPOUNDS Vol. 71-in 50 ml. of benzene was added to the hot mixture and refluxing was continued for 18.5 hours. At this point a hydrolyzed sample of the reaction mixture was no longer alkaline to phenolphthalein and gave only a slight purple color with ferric chloride. Ether and dilute hydrochloric acid were added and the ethereal extract was washed with sodium bicarbonate and dried. Distillation gave 3.77 g.(32.2%) of the keto ...