124 P. T. Austen—Reaction of Dinitrobrombenzol, 
C°H®(NO?)*Br+2KNO2=C*H*(NO?)2OK-+KBr-+ (N20? ?) 
tions with 99 per cent alcohol, there was but an exceedingly 
slight reaction, only traces of the phenol having been formed, 
which doubtless owed their origin to the small amount of water 
shall describe the application of this method of phenol forma- 
tion to other compounds at another opportunity. 
Dinitrobrombenzol, Benzol, and Zine. 
Since benzylchloride treated with benzol and zinc dust gives 
a benzylbenzol, it seemed not improbable that dinitrobromben- 
zol might give a dinitrodiphenyl, owing to the weakened 
attraction of the bromine atom from the presence of the nitro- 
group, although in this case the bromine atom is attached 
directly to the benzol skeleton, and not indirect] , as in the 
id 
hours in a closed tube at 100°, and then again at 160°. 
both cases there was no action. Toluol instead of benzol also 
remained unchanged. Perhaps nitro toluol, in which the 
hydrogen atom of the methyl-group may be weakened by the 
Sa of the nitro-group in the benzol kernel, may give 
Dinitrobrombenzol and Sodium Acetate. 
Wishing to ascertain if a dinitrophenyl acetic ester could be 
obtained according the reaction 
O*H*(NO?)?Br,+-CH?COONa=CH?COOC*H#(NO2)2-4-NaBr, 
I heated the substances with alcohol for six hours in a closed 
tube at 100°. There was no pressure on opening the tube, but 
a strong smell of acetic ether. The tube contained orange-red 
crystals of sodium dinitrophenylate, and in the solution there 
was considerable sodium bromide. The reaction had probably 
gone. 
L C&H3(NO2)2 BrNa|O.00.CH® {encooctn” 
Hj = 
co sen 
Il. GoH*(NO2)20/H = C*H3(NO2)20Na 
N*.COONG| _ 1 CH3.COOH. 
Il. CH%.COo|FI = CH?.COOC?H$ 
C*H/0H| ~ ( H?0. 
