513 



also insoluble basic oils, the boiling-point of which rises to 180 C. 

 Simple distillation of the liberated bases appears to give rise to de- 

 compositions, and thus to induce further complication. We have 

 not succeeded in ascertaining with perfect precision the nature of 

 this mixture, but we have found that it invariably contains a con- 

 siderable quantity of a base which bears the same relation to allylic 

 alcohol that is observed between ethylamine and ordinary alcohol. 

 The formation of this substance, which we propose to designate 

 allylamine, C 6 H 7 N, is perfectly analogous to the production of 

 ethylamine by means of cyanate of ethyl. 



Diallylamine, C^HjjN. Impure allylamine, obtained by the 

 action of potassa on the cyanate, when digested with a second quan- 

 tity of iodide of allyl is rapidly changed into a mass of hydriodates 

 of new compounds. This crystalline mass evidently contains a con- 

 siderable quantity of the hydriodate of diallylamine, but to succeed 

 in separating it from this very complicated mixture would have re- 

 quired a more considerable quantity of substance than we had at our 

 disposal. 



Triallylamine, C 18 H 15 N. The oxide of tetrallylammonium, to 

 which we shall presently allude, submitted to the action of heat, is 

 decomposed, with liberation of a basic oil. The perfect analogy of 

 the oxide of tetrallylammonium with the corresponding ethyl-com- 

 pound, leaves no doubt respecting the nature of this basic substance. 

 It is obviously triallylamine. When saturated with hydrochloric 

 acid and mixed with bichloride of platinum, it deposits a yellow plati- 

 num-salt, the analysis of which leads to the formula 



C 6 H 5 N, H Cl, Pt C1 2 . 

 C 6 H 5 



Oxide of Tetrallylammonium, C^H^NO, HO. The chief product 

 of the action of ammonia upon iodide of allyl is a magnificent crystal- 

 line compound, which is deposited from the solution resulting from 

 the reaction. Iodide of allyl is rapidly attacked even by an aqueous 

 solution of ammonia at the common temperature. By a few days' 

 contact a large quantity of the iodide dissolves, and the solution be- 

 comes a solid mass. If no deposition of crystals take place from 

 the solution, it is only necessary to add a concentrated solution of 

 caustic potassa, which causes the separation of an oily layer that 



