1290 NEW COMPOUNDS Vol. 70 twenty minutes 12.5 g.(0.048 mole) of di-p-anisyl ketone (mp 140-142') dissolved in 125 ml. of dry, warm thiophene-free benzene. After fifteen minutes of stirring at room temperature, a qualitative test for the Grignard reagent3 was made to be certain that an excess had been used. Otherwise the product is difficult to purify because of the ketone present. The mixture was hydrolyzed by pouring it into 200 g. of ice ...