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 H5 N2 CI, the diazo group takes the place of the acetyl group 

 and benzene-a-azo-propionic ester, Ce H5 N2 CH (CH3) CO2 C2 H5, is 

 produced. It is a yellow crystalline substance which melts at iiyr 

 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. 54i 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 Hio O3 Ce H12 Oe, which is quite stable. 



CONRAD, M. AND W. EPSTEIN, 1887. 



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



Bull. Soc. chini. 49» 639. 



Action of Ammonia on Acetoacetic Esters. 



Amido- acetoacetic methyl ester, CH3 C • (NH2) : CHCO2 CH3 , 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, CH3C- (NH2) C (C2 H5) CO2 CH3, 

 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, i 

 Amido- acetoacetic esters acted upon by sodium form sodium compounds^ 

 which with an alkyl iodid form amidoalkylacetoacetic esters. Amidor 

 ethyl-acetoacetic ethyl ester formed similarly melts at 60.° Di-ethyl- 

 acetoacetic ester will give no amid which proves that these compounds 



