118 PROCEEDINGS OP THE AMERICAN ACADEMY 



0.2490 gram substance gave 0.5216 gram C0 2 and 0.0721 gram 



H 2 0. 

 0.3001 gram substance gave 22 c.c. moist nitrogen at 17° and 



760 mm. 

 0.1789 gram substance gave 0.1857 gram AgCl (Carius). 



Although the above analytical figures do not agree exactly with 

 the theoretical ones, it is highly probable that the substance is 

 mesoxanilidiinidechloride, especially because of the almost quanti- 

 tative conversion into mesoxanilide (mentioned below). It is most 

 likely that the oil still contained traces of phosgene, since it was 

 distilled only once. Furthermore, Wallach in his well known re- 

 searches on imide and amidechlorides * very seldom obtained good 

 analytical results, because of the instability of these compounds, 

 even when the substances were obtained in the crystalline form. 



Mesoxanilidimidechloride has thus been formed quantitatively 

 according to the following equation: 



C 6 H 5 N=C= CI . C 6 H 5 N=C ' 



+ X CO = CO 



C 6 H 5 N=C= Cl x C 6 H 6 N=C 



X C1 



That in this case not a trace of oxanilchloride imidechloride is 

 formed, according to the equation 



C 6 H 5 K=C= + COCl 2 = C 6 H 5 N=CT 



x CO-C1 



is shown below under mesoxanilide. 



* Ann. Chem. (Liebig), CLXXXIV. 9. 



