1930 



CYCLOID C9H12O4N2 



Carboxydimethylpyrazylpropionic 

 acid 



Amide of the monoethyl ester 



^ CMe C . CH2 . CH2 . COjEt 



(NCO. NH2).CMe 



Maxell, F. Ann. cliim. phys., Paris, 

 (ser. 7), 26, 1902, (295-366). 



CYCLOID C9H14O2N2 



3 . 4-Dimethyl-5-propylpyrazole 

 4-carboxylic acid 



^^G{C,H,) . CMe . CO2H 

 ^ N CMe 



Methyl ester. 



Bouveault, L. et Bongert, A. Paris, 

 Bui. Soc. chim. (ser. 3), 27, 1902, (1100- 

 1106). 



CYCLOIDS C10H8O2N2 



5,3-Phenylpyrazole carboxylic acid 



OeHs . C3H2N2 . CO2H 



and its 7nethyl and ethyl esters. 



Buchner, Eduard uiid LeTimann, Louis. 

 Berlin, Ber. D. chem. Ges., 35, 1902, 

 (35-37). 



i-Phenyl-.3-methyl-4-ketopyrazo- 

 lone-(5) 



also its Diethylamidoaniline and Di- 

 metliylamidoaniline derivatives. 



Sachs, Franz und Barschall, Hermann. 

 Berlin, Ber. D. chem. Ges., 35, 1902, 

 (1437-1439). 



CYCLOID CioH,202N2 



Dimethyldiacetylpyrazine. 



Wolff, Ludwig. Liebigs Ann. chem., 

 Leipzig, 325, 1902, (129-195). 



CYCLOID C10H14ON, 



N. N'-Dimethyldiliydrotolimida- 

 zolol. 



Fischer, 0[tto] und Rigaud, M. Ber- 

 lin, Ber. D. chem. Ges., 35, 1902, (1258- 

 1265). 



'50 1930 



CYCLOID C10H18ON2 



4-Ethyl-3-amyl-pyrazolone 



CH,, . Q^ NH 



XHEt.CO 



Locquin, Rene. Paris, C -R. Acad. 

 8ci., 135, 1902, (108-110). 



CYCLOID CUH8O2N2 



2-Phenyl-pyrimidine 6-carboxylic 

 acid 



5-Bromo derivative CuHjOjNjBr i.e. 



^^<CH''.bBr>C-C02H 



also 2-Phenyl-5-c}iloro- pyriinidine carb- 

 oxylic acid and 2-Phenyl-5-amino- 

 pyrimidine carioxylic acid and their 

 Benzamidine salts. 



Kunckell, Franz und Zumbuscli, L. 



Ueber die Einwirkmig von Mucobrom- 

 und Mucochlor-Saure auf Benzamidin. 

 (Vorl. Mitt.) Berlin. Ber. D. chem. Ges., 

 35, 1902, (3161-3168). 



CYCLOID CuHsOsNz 



Benzylidene-barbituric acid 



p-DlMETHYLAMINO DERIVATIVE 



Me^N . CeH, . CH : C<^^ ' nh>CO 



Sachs, Franz und Lewln, Willy. 

 Berlin, Ber. D. chem. Ges., 35, 1902, 

 (3569-3578). 



CYCLOID CnH.OiNa 



4-Phenylpyrazole dicarboxylic acid 



DIETHYL ESTER C'lsHigO^Nj 



Behaghel, Wilhelm und Buchner, 



Eduard. Berlin, Ber. D. chem. Ges., 

 35, 1902, (34-35). 



Buchner, Eduard und Schroder, 

 Heinrich. Berlin, Ber. D. chem. Ges., 

 35, 1902, (782-790). 



ETHYLMETHYL ESTER C14H14O4N2 



Buchner, Eduard und Heide, Carl von 

 der. Berlin, Ber. D. chem. Ges., 35, 

 1902, (31-34). 



