ACETO ACETIC ESTER 49 



KNORR, L., 1883. 



Ber. 16, 2597-2599; J. Chem. Soc. 4<* 32 ; Jsb. Chera. 1883, 795; 

 Bull. Soc. chim. 42, 655. 



Action of Acetoacetic Ester on Phenylhydrazin. 



When these substances react there is formed CH 3 C (HN 2 C 6 H 5 ) 

 CH 2 CO 2 C 2 H 5 . If this be heated on the water bath alcohol is given 

 off and a body C IO H IO N 2 O, is left which melts at 127; it resembles car- 

 bostyril ; its constitution is unknown. When it is heated with an 

 excess of phenylhydrazin its anhydrid C 20 H l8 N 4 O is produced, 

 which from its reactions is shown to contain a hydroxyl group. 



WISLICENUS, J., 1883. 



Ann. Chem. 219, 307-321 ; J. Chem. Soc. 44 966 ; Jsb. Chem. 1883, 



980. 



Methyls-butyl Ketone and its Derivatives. 



Ethyl-methyl-acetoacetic ester is saponified and methyl-/9-butyl 

 ketone, CH 3 COCH (CH 3 ) (C 2 H 5 ), obtained, it boils at 118 and has a 

 specific gravity of .818 at 14. 5? By treating it with sodium and water 

 two products were obtained, methyl-/9-butyl carbinol, 



CH 3 CHOHCH 

 CH 3 CH 3 



- (CH 3 )(C 2 H 5 ), and methyl-/9-butyl pinacone, COH - COH 



CHCH 3 CHCH 3 

 C 2 H 5 C 2 H 5 



Methyl-/9-butyl carbinol is changed into the iodid and then 

 by substituting hydrogen for this iodin methyl-di-ethyl-methane, 



H 

 C 2 H 5 C CH 3 , is formed. 



C 2 H, 



