ACETO ACETIC ESTER 6} 



PAAL, C., 1884. 

 Ber. 17, 2756-2767 ; J. Chem. Soc. 48, 248. 



Derivatives of Acetophenonacetoacetic Ester and Acetonylaceto- 



acetic Ester. 



One of the two isomeric compounds C IT Hi O, obtained by dehydrat- 

 ing acetophenon-acetone is named dehydraceto-phenon-acetone 

 and given one of the three formulae : C 6 H 5 C i C CH 2 CO CH 3 ; 

 C 6 H 5 COCH 2 C ; CCH 3 ; C 6 H 5 COCH 2 CH 2 C \ CH ; and the other 



CH : C ( CH 3 ) 



compound is named phenyl-methyl-furfurane ,l > O . 



CH:C(C 6 H 5 ) 



Acetophenon-acetoacetic ester yields analogous dehydrated derivatives. 



CH 3 COCHC0 2 C 2 H 5 , 



Acetonyl-acetoacetic ester, when treated with 



CH 2 COCH 3 



hydrochloric acid becomes pyrotritartaric ester, 



HC CC0 2 C 2 H 5 



II II 

 CH 3 C CCH 3 



\ / 

 O 



A number of other derivatives of the above compounds are described, 

 and their constitution indicated. 



BEHREND, ROBERT, 1884. 



Ber. 17, 2846-2847 ; J. Chem. Soc. 48, 246. 



Derivatives of Carbamid. 



The author is investigating the products of the action of carbamid 

 on acetoacetic ester. From the first compound formed C 5 Hg N 2 O 3 , are 

 obtained C 5 H 6 N 2 O 2 ; C 5 H 3 N 3 O 6 ; C 4 H 3 N 3 O 4 and C 5 H 6 N 4 O 3 . 



