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-tt-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 <NHCH' which melts at 2 35~ 2 3 6 

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

 monobrom-acetoacetic acid, CH 3 CO CH Br CO NHC 6 H 5 , which melts 

 with decomposition at 138. Isonitroso-acetoacetic anilid, CH 3 CO C : 

 (NOH) CONHCeH 5 , is a crystalline substance melting at 99-ioo. 

 Reducing agents change acetoacetic acid anilid into hydroxylepidin, 

 C 9 NH 5 CH 3 OH, [4' : 2'] which can be changed into ^-lepidin and 

 chlorolepidin. Methoxy-lepidin formed from chlorolepidin boils at 

 275 276. Bthoxy-lepidin melts at 51 Methyl-lepidone, 



P TT ^ CCH 3 : CH^ 

 ^ 4 < NCH 3 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, CH 3 C : (N 2 CH 3 C 6 H 5 ) CH 2 CO 2 C 2 H 5 , 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. 



