Ryan & Keane — Action of Oxides of Nitrogen on Ethyl- ^-Naphthylether. 303 



Summary. 



1. By the action of the oxides and the oxyacids ot nitrogen on ethyl -/3- 

 naphthylether in dilute solution the main product was l-nitroethyl-j3-naphthyl- 

 ether. 



2. Nitrogen peroxide in the vapour phase converted ethyl -/3-naphthyl ether 

 into 1-6- and l-8-dinitroethyl-/3-naphthylether. In carbon tetrachloride solution 

 it formed the IS-dinitro- and l-nitroethyl-|:i-naphthylether, while in acetic acid 

 solution the l-nitro compound was the main product. 



3. Nitric acid in carbon tetracUoride solution converted the ether into 1-6- 

 and l-8-dinitroethyl-/3-naphthylether. 



4. Nitric acid converted l-nitro-, 1-6-dinitro, and l-8-dinitroethyl-j3-naphthyl- 

 ether into the same trinitro derivative which was, therefore, 1-6-8-trinitroethyl- 

 j3- naphthyl ether. 



The above investigation was undertaken at the request of the Research 

 Section of Nobel's Explosives Company, to whom we are indebted for the 

 materials employed in the research. 



