OF AROMATIC COMPOUNDS. 79 



Bourgoin, however, showed that the reaction does 

 not take place smoothly, but is always accompanied 

 by secondary reactions. 



Morphine. Pommerehne, 1 by the electrolysis of a 

 solution of morphine acidified with sulphuric acid, 

 obtained, after a few days, crystals of oxy-dimorphine 

 sulphate. The solution became dark-colored. 



Codeine (methyl-morphine), C 17 H 17 NO(OH)O.CH,. 

 On the electrolysis of the neutral sulphate hydrogen 

 is evolved, codeine is precipitated, and the solution 

 turns brown. The acid sulphate undergoes more 

 complete decomposition, and carbon dioxide, carbon 

 monoxide, oxygen, and nitrogen are split off. 



Cotarnine, 2 C ia H 1B NO 4 . This compound is converted 

 by the electrolytic hydrogen quantitatively into pure 

 hydro-cotarnine, 



(C,,H, t NO,),.H,0. 



Quinine, C ao H a4 N a O 2 . Although the neutral sul- 

 phate is a very poor conductor, the acid sulphate is 

 readily decomposed into carbon dioxide, carbon mon- 

 oxide, and nitrogen. The color of the solution 

 changes to a dark brown. 



Cinchonine, 3 C 19 H 2Q N 2 O. On the electrolysis of the 

 nitrate of this compound an oil-like body appears at 

 the anode. 



1 Arch. f. Pharm., 235, 3*4. 



* German Pat., 94949. 



3 Journ. prakt. Chem., 72, 73. 



