I 8 BIBLIOGRAPHY OF 



CO 2 H is formed, it melts at 154 155. A new acid, Ce H 9 NO 4 , was 

 produced by treating acetoacetic ester with nitrous acid, it is so un- 

 stable that it cannot be distilled. Its constitution is either 



CH 3 or CH 3 



CO CO 



C=N OH CH N = 

 C0 2 C 2 H 5 C0 2 C 2 H s 



WISLICENUS, J., 1877. 



Ber. 10, 2226-2227. 

 The Saponification of Acetoacetic Esters. 



The author calls attention to the double saponification of acetoacetic 

 esters. Substituted acetic esters or acids are obtained as well as sub- 

 stituted ketones. 



WISLICENUS, J., 1878. 



Ann. Chem. 190, 257-281 ; J. Chem. Soc. 34 402 ; Ber. n, 251. 

 Decomposition of Acetoacetic Ester by Alkalis. 



A large number of experiments have been performed and tables are 

 given showing the proportions of the different products of saponification 

 under different conditions. It was found that the more concentrated 

 the alkali and the more it was in excess the larger was the proportion 

 of acetic acid and substituted acetic acids and the smaller was the pro- 

 portion of carbonate and ketones. 



CONRAD, M., 1878. 



Ber. ii, 58-60; J. Chem. Soc. 34. 43 ; Jsb. Chem. 1878, 687. 

 Action of Sodium on Ethoxy acetic Ester. 



By the action of sodium and then acetic acid on ethoxyacetic ester, 

 CH 2 (O C 2 H 5 ) CO 2 C 2 H 5 , a compound C IO H l8 O 5 is formed which 

 boils at 245 and is believed to be ethoxyacetyl-ethoxyacetic ester, 

 CH 2 (OC 2 H 5 ) CO CH (O C 2 H 5 ) CO 2 C 2 H 5 . It colors ferric chlorid 

 violet, dissolves sodium and forms a barium compound. Heated with 

 an alkali it gives ethoxyacetic ester. 



