42 JOURNAL OF THE 



displaced by one of hydrogen, and our end would be accomplished. 



In accordance with the above considerations acet ortho toluide 

 was bromated, nitrated and the acetyl-group di^^placed by the pro- 

 pionyl* group. The resulting compound furnished, upon reduction 

 with tin and hydrochloric acid. 



Propenyliso-bromtoluylenamidine, 



fiCH^ ricH3_ 



CeH^ ^'^^SZC.CH,.CH3orCeH, J jg=_C.CH,CH3. This 

 [BmBr [BmBr 



base, as also its salts, crystalizes well, and was easily characterized 

 by analysis. (Let it be designated as bromine base No. 1.) 



Treated in dilute alcoholic solution with amalgam of sodium it 

 gave, after three to four weeks' boiling, 



Propenylisotoluylenamidine : 



^ '^'^ nCHg CCH3 



CeHa oNH- (.jj(.jj orC«H3 oN^ c.cH,CH3 ™' 

 ( mN= - ■' (mJSH — ^ ^ 



base and its salts crystalize beautifully, and their identity was fixed 

 by analysis and otherwise. 



The introduction of bromine into this compound was found easy 

 of accomplishment; but — what is very interesting - the new bro- 

 mine base, though containing, as the old, butjone atom of bromine, 

 was not identical with it. The following comparison will show the 

 points of difference and of agreement : 



Bromine Base No. 1. New Bromine Base. 



Melting point 135 6 152 3 



f Water of crystalization = none. f none. 



Hydrochlo- ! Chlorine = 12 95 per ct. | 12 87 per ct. 



ricacid Salt j Soluble in 1000 parts | 



1^ of water = 2.42 parts. [ 4 81 parts. 



Platinum 

 Salt. 



f Water of trystalization = 4. 16 per ct f 4.22 per ct. 



I 2 Mol. I 2 Mol. 



; Platinum = 21.96 per ct. -{ 21.95 per ct. 



I Soluble in 1000 parts | 



t of water = 0.9472p'rts. L 1.403 parts. 



*Propionyl-ortho-toluide would, but for the expense, have been used from 

 the outset. 



