6 Rachel Lloyd, 



To form this compound diphenisobutylamine was heated 

 with an excess of acetic anhydride for two hours at a tem- 

 perature of 130°. The fluid darkened in color, and upon 

 neutralization of the free acid with sodium carbonate, a thick 

 crystalline mass of a gray-white color separated. This mass 

 was thoroughly washed, dried, and crystallized out of benzol 

 by addition 'of a small quantity of absolute alcohol, in glis- 

 tening white leaflets, with 75° as the constant melting point. 

 The crystals dissolved with difficulty in hot water, readily 

 in alcohol and benzol. Efforts to obtain the base from this 

 compound by heating with sodium carbonate and caustic 

 soda were unsuccessful, the acetyl compound remaining unde- 

 composed. The analysis gave the following result : — 



0.2895 gr. substance gave 0.2383 water, corresponding to 

 0.02647 H and 0.8640 gr. carbon-dioxide to 0.23565 gr. C. 



ISOAMYLPHENOL. 



The Isoamylphenol which formed the starting-point of the 

 following experiments was made after the method given by 

 Liebmann and distilled at 249°. The experiments were con- 

 ducted similarly to those with isobutylphenol. With every 

 twenty grams of phenol sixty grams of zinc-ammonium-bromide 

 and twenty grams of ammonium-bromide were used. The 

 substances were heated in closed tubes for forty hours at a 

 temperature of 330°-340°. On opening the tubes a very dis- 

 agreeable-smelling gas escaped, which burned with a feeble 

 flame for a few seconds. The tube-contents were in general 



102 



