On a Condensation Product of Acetone and 

 Aldehydammonia, 



lYIitsuru Kuhara, Ph. D. 



Smiic time ago A. Mantzsch 1 obtained, by the condensation of 

 acetone and aldehydammonia, ;i complex mixture of basic substances 

 boiling between L50° nnd 360°. from which he «'mild only separate 

 collidine which was formed as a direcl condensation product of 

 aldehydammonia. I have, likewise, attempted to carry on for the last 

 four years the -nine line of investigation, in a somewhat different 

 manner and liave succeeded in separating a basic substance besides 

 collidine from that complex mixture. The results of the author's 

 experiments have already been communicated to the Tokyo Chemical 

 Society in June, 1888. In September of the same year E. Durkopf 2 

 published the results of his researches on the same mbject, in which 

 he gives an account of a basic substance which was formed by the 

 condensation of acetone and aldehydammonia. His compound is, 

 however, probably isomeric with that obtained by the present author, 

 as both compounds arc similar in some respects and have the same 

 molecular formula. 



In the author's experiments, a mixture of 1500 grams of acetone 

 and 750 grams of aldehydammonia was continually heated at 120°- 

 lo0° for 25 hours in n cast iron digester over an oil bath. When the 

 digester was opened, its contents were found to lie a dark brown 



1. Bur. a. cleat, chem. Gesel. 14. n; 17. 

 2 „ „ m 21,2713. 



