70 BIBLIOGRAPHY OF 



CO 2 C 2 H 5 . It is an oil which boils at 246 to 247 and from it, its 

 acid can be formed, the calcium salt of which, when distilled from lime, 

 yields 2:4, lutidin. The free acid C 5 NH 2 (CH 3 ) 2 CO 2 H , can be 

 oxidized to carbocinchomeronic acid, C 5 NH 2 (CO 2 H) 3 [2 : 3 : 4] , 

 which yields cinchomeronic acid, C 5 NH 3 (CO 2 H) 2 [2:3]. 



BUCHKA, K., 1885. 



Ber. 18, 2090-2093; J. Chem. Soc. 48, 1200; Jsb. Chem. 1885, 1351. 

 Action of Sulfur Chlorid on Sodacetoacetic Ester. 



The sulfid of acetoacetic ester (CH 3 COCHCO 2 C 2 H 5 ) 2 S , is produced 

 by this action. It melts at 80 to 81 The reduction or condensation 

 of this was impossible because of its unstability. Carbonyl chlorid 

 acts on sodacetoacetic ester to form chloracetoacetic ester. 



FITTIG, R., 1885. 



Ber. 18, 2526-2527 ; J. Chem. Soc. 50, 47. 

 Condensation of Acetoacetic Ester with Dibasic Acids. 



Acetoacetic ester condenses with succinic acid to form a compound 

 CIQ H I2 O 5 , which melts at 75 -76 and which is a mono-ethyl salt of 

 a dibasic acid, Cg H 8 O 5 . This acid melts at 199 to 200. With 

 sodium pyrotartrate, acetoacetic ester gives the mono-ethyl ester of the 

 acid C 9 H IO O 5 . Further investigations are being made in this line. 



HANTZSCH, A., 1885. 



Ber. 18, 2579-2586 ; J. Chem. Soc. 50, 77 ; Jsb. Chem. 1885, 830. 

 Constitution of the Synthetical Hydro-pyridin Derivatives. 



The hydrogen in these compounds has been assumed to be in con- 

 nection with carbon but as Kukart has obtained a substituted hydro- 

 pyridin derivative by the action of paraldehyde and sulfuric acid on the 



