OX A CONDENSATION PRODUCT OF ACETONE & ALDEHTDAMMONIA . 239 



gre in solution thus formed was mixed with a large quantity of water 

 and subjected to distillation ; and in the distillate was found a 

 considerable quantity of acetic acid and a little formic acid. 



Next, the base was subjected to oxidation with a potassium per- 

 manganate solution containing 1 part of potassium permanganate to 

 <S parts of water. To the base a small portion of the solution was 

 added from time to time, and it was heated over a water bath, and at 

 each addition the solution was found immediately to decolorize, 

 probably through the rapid breaking up of the base. The products 

 of the oxidation were found to consist mainly of carbon dioxide and 

 acel ic acid. 



On distilling the base with dilute sulphuric acid, mesityl oxide 

 was produced as one of the decomposition products, and on further 

 continuing the distillation, it gradually became black 5 evolving S0 2 . 



The Probable Constitution of the Base. 



The condensation of aldehydammonia and acetone into the base 

 C 8 H 13 N may be represented by the following equation : 



C 2 1 f 7 NO + 2 C 3 H c O-3H 5 = C S H 13 N. 



Accepting the above equation as true, the formation of the base, 

 by condensation may be possible in three ways, as may he seen in the 

 following formula- : 



i. II. III. 



CH3 ,A CH SN X'H, 



/ V \ m ^*\ / 



n 

 / \ 



ho ru x 



He GH, 



/ \ 



/('Il ne eu 



CH 3 — C CH— CH 3 \ / \ M1 CH 3 -0 CH 



/ M U1 



NH 



