122 BIBLIOGRAPHY OF 



acid Cs Hio O3 , melts at 149°, is soluble in alcohol, ether and chloroform 

 and decomposes at 160°; its barium and silver salts were described. 

 Isodehydracetic ester is converted by warm anhydrous ammonia into 

 the corresponding lactam, identical with the substance obtained by 

 Collie by the condensation of ;/5-amido-crotonic ester. The change is 

 represented thus : 



CH-! CH, 



is changed by ammonia into mesitene lactam 



CH3 



C 



/ \ 



HC CH 



! I 



CH3 C CO 



\ / 



N 

 H 



An alcoholic ethereal solution of isodehydracetic ester treated in the 



I 



