(9) A11 titrations were done as by SR Cooper and RP Barnes, Ird. Enp. Chem., And. Ed., 10, 879 (1938).(10) THlr JovrNu,@ a, 894 (1940). 96-98'(6 mm.). The yield was 60 g., which was 80%.(11) A chilled mixture of 50 g. of acetylmesitylene and 200 cc. of water was treated dropwise with rapid stirring with a solution of 100 g. of potassium permanganate and 32 g. of potassium hydroxide in 3000 CC. of water. The manganese dioxide was filtered off and ...