3 190 MCNELIS VOL. 28 which, after crystallization from ethanol, melted at 216-216'and displayed the same infrared spectrum as the material from the pyrolysis reaction. A mixture melting point of these two products gave no depression. Two dichloroxanthones are predicted by a benzynetype reaction. In this mode of reaction chlorobenzyne I1 is generated and attacked by another 2, 4-dichlorobenzoate molecule. A concerted addition of ...
