-Nilro-derivatives of Diphenylai 



A preliminary notice of the following investigation was 

 | ib - nil in the Berichte der Deut. Chem. Ges., vol. vii, p. 

 1248. I had hoped, long before this, to have completed the 

 research in a more satisfactory manner, but my time having 

 been occupied with other subjects, I have but recently been 

 able to return to it 



Pisani- found that trinitrochlorbenzol acted on ammonia, 

 and formed trinitroaniline. Clemmf applied this reaction to 

 aniline, and obtained a triuitrodiplienyhimine. In a similar 

 manner he produced a dinitrodiphenylamine by the action of 

 dinitrobrombenzol on aniline. 



The reaction in all of these cases is simple — 



C«H2(N02)3C1I+2NH3=0 6 H 2 (N02) 3 NH2 + XH*C1 



Several nitro-derivatives of diphenylamine had already been 

 discovered by Hofmanng before the research of Clemm was 

 made. They had, however, not been produced by the intro- 

 duction of a nitrophenvl-complex into aniline, but by the 

 dhvi-t nitntion of 1 cnzovldiphenylamine, and subsequent elim- 

 ination of the benzoyl-group. 



The trinitrochlorbenzol was made bv Clemm's method ; 100 

 grams of picric acid were well mixed'with 200 grams of phos- 

 phorous pel laced in a large retort connected 

 with an inclined condenser. On heating gently, the mass 

 began to fuse, on which the burner was taken away. The 

 reaction proceeds by itself and is very violent. After the < 



, X Ontte 



Nitroverbindungen. 



f Jour. Pr. Chem. [II], i 



. ^ alkoholischem Ammoniak unt 

 ^Ofatomdurch die Amidogruppe l ' '" 



oruonier Tempers 



8chon in der Kal 



gebt aus dem toandelt man 



:-' ' • ' ' • : ; - - v " - . 



Corner (Jsiutx enin g * ctl ° Q °f 



howe ? ve?" hal0genS iS ° alj eXerted WheQ ** relati ° Q 1S 1S ° F 



§ Ann. Chem. Phann., cxxxii, 160. 



**• Joub. Sci.-Thibd Series, Vol. XIII, No. 76.— Aran., 1877. 



