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6. By the action of phosphorous oxychloride, each of the 
two dianilides was transformed into the dianil. This in turn 
when heated with concentrated hydrochloric acid gave the anil 
or, heated with glacial acetic acid it gave the unsymmetrical 
dianilide. 
7. The derivative obtained by the action of the alcohols on 
the symmetrical acid chloride was the benzoic ester of the sul- 
phonic acid. 
8. The derivatives obtained by the action of alcohols on the 
unsymmetrical acid chloride were the benzoic ester of the sul- 
phone chloride, and the benzoic ester of the sulphonic acid. 
9. The derivative obtained by the action of phenol upon 
either of the acid chlorides was always the diphenyl ester. No 
particular effort was made to prepare the phenyl sulphone chlor- 
ide. When pyridine was used in the reaction, a second body 
was formed which may be the pyridine salt of the phenyl ben- 
zoic ester acid. Its constitution was not established. 
10. By the action of methyl iodide on the silver salt of the 
methyl benzoic ester acid, the dimethyl ester was formed. 
Organic Chemistry Laboratory, 
State University of Iowa. 
