82 BIBLIOGRAPHY OF 



KNORR, L., 1886. 



Ann. Chem. 236, 69-115 ; J. Chem. Soc. 52, 159; Ber. 19, 827 (C) ; 

 Jsb. Chem. 1886, 1336 ; Bull. Soc. chim. 47, 633. 



Synthetical Experiments with Acetoacetic Ester. — Part I. 



Acetoacetic ester and anilin react at ordinary temperatures to form 

 /?-phenylamido-a-crotonic ester, but at iio°-i5o° the anilid of aceto- 

 acetic acid is formed, which melts at 85° and gives, when distilled, 



diphenyl-carbamid, CO< nyTTTp^-LT^- which melts at 235°-236f The 



anilid, when heated with chloroform and bromin, yields the anilid of 

 monobrom-acetoacetic acid, CH3 CO CH Br CO NHCe H5 , which melts 

 with decomposition at 138.° Isonitroso- acetoacetic anilid, CH3 CO C : 

 (NOH) CONHCeHj , is a crystalline substance melting at 99°-ioo.° 

 Reducing agents change acetoacetic acid anilid into hydroxylepidin, 

 Cg NH5 CH3 OH, [4' : 2'] which can be changed into j'-lepidin and 

 chlorolepidin. Methoxy-lepidin formed from chlorolepidin boils at 

 275°-276.° Ethoxy-lepidin melts at 51 Methyl-lepidone, 



C^H <- ^^^3 : CH 

 ^6 ±14 < NCH3 CO ^ ' 



may be formed from methyl anilin and acetoacetic ester. It melts at 

 130°, sublimes and is a strong base. 



DEQEN, JOS., 1886. 



Ann. Chem. 236, 151-164; Ber. 19. 829 (C). 



Indol from Methyl=phenylhydrazin. 



In this article an account is given of making methyl-phenylhydrazin 

 acetoacetic ester, CH3 C : (N^ CH3 Ce H5) CH2CO2C2H5 , from methyl- 

 phenylhydrazin and acetoacetic ester. The product, a yellowish red 

 oil could not be distilled, but seemed quite stable towards water 

 solutions of the alkalis. With alcoholic potash it was decomposed 

 into methyl-phenylhydrazin acetoacetic acid. 



