



593 



tains amylamine which may be liberated by potassa. The oily sub- 

 stance is obviously amylsulphocarbamic acid : it dissolves in ammonia 

 and in potassa ; mixed with amylamine, it reproduces the original 

 crystalline compound. 



Experiments with ethylamine have furnished perfectly analogous 

 results. I have been satisfied to establish qualitatively the analogy 

 of the reactions. 



It is of some interest to compare the deportment of amylamine 

 under the influence of bisulphide of carbon with that of phenylamine 

 in the same conditions. If both bodies gave rise to similar changes, 

 we should expect in the case of phenylamine the formation of phenyl- 

 sulphocarbamate of phenylamine. But experiment has proved 

 that phenylamine immediately produces diphenyl-sulphocarbamide 

 (sulphocarbanilide), sulphuretted hydrogen being evolved 



2(C M H 7 N) + C 2 S 4 =C 26 H 12 N 2 S 2 + H 2 S 2 . 



Phenylamine. Diphenylsulpho- 



carbamide. 



Nevertheless it is extremely probable that further experiments 

 will establish a perfect analogy in the deportment of bisulphide of 

 carbon with amylamine and phenylamine. Diphenyl-sulphocarba- 

 mide is probably the product of decomposition of a very unstable 

 phenylsulphocarbamate of phenylamine 



C 26 H U N 2 S 4 =H 2 S 2 



Phenylsulpho- Diphenylsulpho- 



carbamate of carbamide, 



phenylamine ? 



while a more minute examination of the crystalline substance 

 obtained by the action of heat upon amylsuphocarbamate of amyl- 

 amine cannot fail to characterize it as diamylsulphocarbamide 



C 22 H 26 N 2 S 4 =H 2 S 2 +C 22 H 21 N,S 2 ? 



Amylsulphocarbi- Diamylsulpho- 



mate of amylamine. carbamide. 



The apparent dissimilarity of the two reactions would thus be 

 reduced to the unequal stability of the sulphocarbamic acids of the 

 amyl- and phenyl-series. 



