34 



BIBLIOGRAPHY OF 



HANTZSCH, A., 1882. 



Ann. Cheni, 215, 1-82; J. Chem. Soc. 44» 82; Ber. 15, 2912 ; Jsb. 



Chem. 1882, 491. 



Synthesis of Pyridin Derivatives from Acetoacetic Ester and 

 Aldehyde= Ammonia. 



The condensation product of acetoacetic ester and aldehyde-ammonia 

 is dihydrocoUidin-dicarboxylic ester, 



CH3 



I 

 C 



/ \ 

 CO2C2H5C — H C — CO3C3H5 



I I 



CH3C— H C — CH3 



\ / 



N 



The author describes this and many of its derivatives. 



CERESOLE, M., 1882. 



Ber. 15, 1326-1328 ; J. Chem. Soc. 42, 1052; Jsb. Chem. 1882, 758; 

 Bull. Soc. chim. 38, 390. 



Nitrosoacetone and Acetoacetic Acid. 



By allowing a mixture of acetoacetic ester and potassium hydroxid 

 to stand a day and then treating it with an acid, acetoacetic acid is 

 produced. This is the first production of it. It is a colorless liquid, 

 mixes with water and is strongly acid. It is very unstable, decompos- 

 ing at less than 100.° 



DUISBERG, C, 1882. 



Ber. 15, 1378-1388 ; Ann. Chem. 213, 133-181 ; J. Chem. Soc. 42, 

 1 192 ; Jsb. Chem. 1882, 841 ; Bull. Soc. chim. 38, 391. 



Contribution to the Knowledge of Acetoacetic Ester. 



By treating acetoacetic ester with bromin the author cannot get lyipp- 

 mann's dibrom addition product or Conrad's dibrom addition dibrom 



