92 BIBLIOGRAPHY OF 



JAPP, FRANCIS AND FELIX KLINQEMANN, 1887 



Ber. 20, 2942-2944. 

 Benzene=azo= and Benzenehydrazo=fatty Acids. 



When sodium-methyl-acetoacetic ester is treated with diazobenzene- 

 chlorid, Ce H 5 N 2 Cl, the diazo group takes the place of the acetyl group 

 and benzene-a-azo-propionic ester, C& H 5 N 2 CH (CH 3 ) CO 2 C 2 H 5 , is 

 produced. It is a yellow crystalline substance which melts at 117? 

 The free acid and a number of its aromatic derivatives were produced 

 from it. 



SCHIFF, HUGO, 1887. 



Ann. Chem. 244, 19-28 ; J. Chem. Soc. 54, 572. 

 Compounds of Sugars with Aldehydes and Acetone. 



Among other compounds described in this article is the one obtained 

 from sugar and acetoacetic ester, corresponding to the formula 

 Ce H IO O 3 Ce H I2 O 6j which is quite stable. 



CONRAD, M. AND W. EPSTEIN, 1887. 

 Ber. 20, 3052-3058 ; J. Chem. Soc. 54 253 ; Jsb. Chem. 1887, 1719 ; 



Bull. Soc. chim. 49, 639. 

 Action of Ammonia on Acetoacetic Esters. 



Amido- acetoacetic methyl ester, CH 3 C- (NH 2 ) : CHCO 2 CH 3 , pre- 

 pared from acetoacetic methyl ester and ammonia gas is a colorless 

 crystalline substance, which melts at 85 and sublimes unchanged. 

 Amido-ethylacetoacetic methyl ester, CH 3 C- (NH 2 ) C (C 2 H 5 ) CO 2 CH 3 , 

 formed from ethylacetoacetic methyl ester, melts at 36-37 Referring 

 to Brandes' obtaining two compounds from this reaction the author 

 thinks it probable that he had some acetoacetic ester with his ethyl- 

 acetoacetic ester and so obtained the two corresponding compounds, 

 Amido-acetoacetic esters acted upon by sodium form sodium compounds 

 which with an alkyl iodid form amidoalkylacetoacetic esters. Amido- 

 ethyl-acetoacetic ethyl ester formed similarly melts at 6o. Di-ethyl- 

 acetoacetic ester will give no amid which proves that these compounds 



