414 



The Philippine Journal of Science 



1913 



PHTHALOPHENONE 

 C=(C6H6)2 



C 6 H 4 <( ^>0 



C=0 



Phthalophenone, from phthalyl chloride and benzene, was 

 purified. by repeated crystallization from alcohol. The colorless 



alcohol solution shows a well-marked band at -=3600 (fig. 13). 



A 



The solution in sulphuric acid is orange with a very strong 



Oscillation frequency. 

 u 2000 ZZ Z4 26 26 3000 SI 34 36 38 4000 4Z 



E 



a 



E 



.5 i 



si 



SI 



Fig. 13. Curve 1. Phthalophenone in alcohol. Curve t. Phthalophenone in sulphuric 



acid. 



color band heading at T =2220, a shallow band at about =■ =3320, 



A A 



and a third in the benzene region at - =3920. 



A 

 PHTHALOPHENONE ANILIDE 



C=(C6H5)2 



C 6 H 4 <^ ^>N-C 6 H 5 

 C=0 



Phthalophenone anilide was prepared from phthalophenone 



