6 BIBLIOGRAPHY OF 



QEUTHER, A., 1871. 



Ztschr. *Chem. 7, 237 ; Bull. Soc. chim. 16, 107. 

 Acetoacetic Ester and Some of its Derivatives. 



When acetoacetic ester is treated with phosphorus pentachlorid, two 

 metameric acids of the formula C4 He O2 are formed, quartenylic and 

 tetracrylic. Chlortetracrylic acid C4 H5 CI O2, and its salts are described. 

 Tetrolic acid, C4 H4 O2, is formed from chlortetracrylic ester by an excess 

 of alcoholic potash. Ammonia in the cold acts on acetoacetic ester to 

 form a soluble amid, Ce Hu NO2, and an insoluble amid, Cs H15 NO2. 

 *Original article not consulted. 



MIXTER, WM. Q., 1874. 



Ber. 7, 499-504 ; Bull. Soc. chim. 22, 279. 



Knowledge of Derivatives of Sodacetic Esters. 



Sodacetoacetic ester was treated with isobutyl iodid and Ce Hg (C4 

 Hg )2 O3 was obtained together with some of the mono-butyl derivative, 

 CeHg {0^11^)02. The dibutyl derivative is colorless, insoluble in 

 water, miscible with alcohol and ether and boils at 250° to 253° Ce Hg 

 ( C4 Hg ) O3 treated with barium hydroxid is saponified to iso-butyl 

 acetone, CH3 CO CH2 ( C4 Hg ). 



WISLICENU5, J., 1874. 



Ber. 7, 683-692 ; J. Chem. Soc. 27, 883 ; Bull. Soc. chim. 22, 457. 



Researches on Derivatives of Acetoacetic Ester. 



In regard to the disputed action of sodium on acetic ester the author 

 agrees with Geuther that as final products only sodethoxid and sodaceto- 

 acetic ester are produced. By the action of sodium on acetoacetic ester 

 only one hydrogen atom can be replaced, but by replacing that sodium 

 atom by an alkyl group the other hydrogen of the methylene group is 

 rendered replaceable by sodium and then by an alkyl group. The ethyl 

 and diethyl substituted esters were produced and described. 



WISLICENUS, J., RUEQHEIMER, CONRAD, EHRLICH AND 

 ZEIDLER, 1874. 



Ber. 7. 892-893 ; J. Chem. Soc. 29, 367 ; Bull. Soc. chim. 23, 72. 

 Derivatives of Acetoacetic Ester. 



Sodacetoacetic ester treated with iodin forms diacetosuccinic ester 

 which melts with decomposition at 77° Sodacetoacetic ester treated with 



