60 



MESSES. E. FE^yN-KLAND AIS'D B. F. DUPPA'S 



in which one atom of ethyl is replaced by the radical C„ H^n-u belonging to the allyl 

 series ; and the action of caustic alkalies upon ethylic methacetone carbonate, for instance, 

 would be expressed as follows : — 



(o ro 



C<^0C4H; + 2KH0-C<^0K + C4H7I C^U, 



[OCH, (OK HJ "*■ H 



^ v^-^ 



Potassium Methylated Alcohol, 



carbonate. acetone. 



}° 



Ethylic methacetone. 

 carbonate. 



Notwithstanding the very simple expression which is thus given to this reaction, and 

 which is in harmony with Kane's views of the constitution of acetone, we cannot adopt 

 it without complicating other well-marked reactions in the ketone family, and ignoring 

 the very palpable difference between the ketonic and alcoholic families. This alcoholic 

 side of the ketone character, if wo may be allowed the expression, supported as it is by 

 the numerous compounds described by Kane, merits more attention than has hitherto 

 been bestowed upon it, and on this account we have drawn attention to its bearings 

 upon the bodies now under discussion, although we have not been able, in its present 

 aspect, to avail ourselves of it in the interpretation of the reactions now under conside- 

 ration. 



In the rational formuliE which we have adopted for the carboketonic ethers, it is not 

 difficult to trace the two original atoms of acetic ether which give rise to the new 

 bodies. To take the production of ethylic methacetone carbonate as an example, it may 

 be assumed that the action of sodium upon one atom of acetic ether converts the latter 



H 



into a body equivalent to ethylene 



2CJ0 



fH 



IOC2H; 



+Na,=2 CJNa +2^^|^jo+H, 



Y 



Acetic ether. 



Alcohol. 



and that this diatomic body then coalesces with an atom of unchanged acetic ether, 

 linking together the two radicals of the latter, thus : 



do 



IOC2H5 



V 



Acetic 

 ether. 



+ |cJNa) = 



CJNa 



or 



Cf 



10 



r 

 10C2H5 



Ethylic sodacetone carbonate. 



I2 



o_ 



H 



Na 

 O 



OC2H5 



