ACETO ACETIC ESTER 59 



PAAL, C., 1884. 



Ber. 17, 913-918 ; J. Chem. Soc. 46, 1177 ; Bull. Soc. chim. 43, 626. 

 Derivatives of Acetophenon-acetoacetic Ester. 



CH 3 COCHCO 2 C 2 H 5 , 



Acetophenon-acetoacetic ester, I when saponi- 



CH 2 COC 6 H 5 



fied yields acetophenonacetone, CH 3 COCH 2 (CH 2 COC 6 H 5 ), from 

 which were produced two isomeric compounds CiiH IO O, one of 

 which melts at 4i-42, boils at 235 to 240 and yields, on oxidation, 

 benzoic acid. The acid C I2 H IO O 3 , previously described, gives by 

 oxidation benzoic, acetic and carbonic acids. An oil C I2 H 9 O 3 C 2 H 5 , 

 was produced from this acid. The work is being continued. 



LIEBERMANN, C. and S. KLEEMANN, 1884. 



Ber. 17, 918-921; J. Chem. Soc. 4<* 1120; Jsb. Chem. 1884, 1158; 

 Bull. Soc. chim. 43. 628. 



Methyl-propyl-acetic Acid. 



This acid, produced from methyl-propyl-acetoacetic ester which was 

 made from methyl-acetoacetic ester and normal propyl iodid is proven 

 to be identical with the acid of the same name produced from saccha- 

 rose. 



PERKIN, Jr., W. H., 1884. 



Ber. 17, 1440-1444 ; J. Chem. Soc. 46, 1154 ; Jsb. Chem. 1884, 1081 ; 

 Bull. Soc. chim. 44. 538. 



Trimethylene Derivatives. 



Aceto-methyl-tri-methylene-carboxylic ester, 



CH 3 



CO 



CHCH 3 , 



| CH 2 

 C0 2 C 2 H 5 



