1930 



920 Cycloids containing nitrogen. 



CYCLOIDS C3HuON2 



Methylisobutylpyrazolone 



CHs.CH.CO 



CMe : N^* 



Locquin, Rene. Paris, Bui. soc. chiin., 

 ser. 3), 31, 1904, (760-762). 



3-Isopropyl-4-ethyl-pyrazolone 



Me,CH.C-X 



EtCH.CO>^^ 



Locquin, Rene. Paris, Bui. soc. chim., 

 (ser. 3J, 31, 1904, (593-595). 



CYCLOID C3H,403N2 



Prolylalanine 



C4H8N.CO.NH.CHMe.CO2H 



Fisclier, E. iind Suzuki, U. Berlin, 

 Ber. D. chem. Ges., 37, 1904, (2842- 

 2848). 



CYCLOID CjHiOiNj 



Quinolinylglycine 



ETinr. ESTER. 



C5H3N<^Q>N.CH2.C02Et 



Fels, B. Berlin, Ber. D. diem. Ges., 

 37, 1904, (212'J-2137). 



CYCLOID CoHsONz 



2-Methyl-4-ketodihydroquinazoline 



6, 8-DlBROMO DERIVATIVE 



N • CMe 

 CeH,Br,<^^;^.jj 



and its clhi/l ether. 



Bogert, M. T. und Hand, \\'. F. J. 

 Amer. Chem. Soc, Kaston,.Pa., 25, 1903, 

 (935-947). 



CYCLOID CuHi20N2 



Dimethylbenzimidazolol 



6-Chi.oro derivative 



C6H3C1<^^^>CH.0H 



Fisclier, 0. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (552-558). 



CYCLOIDS C9H14O3N, 



C-Ethylpropylbarbituric acid 

 N-Methyl-C-diethylbarbituric acid 



,,., CO.NMe ^.Q 



Fischer, E. und Dilthey, A. Liebigs 

 Ann. Chem., Leipzig, 335, 1904,(334- 

 368). 



>NH 



CYCLOIDS CaHibON, 



4-Methyl-3-/(-amyl-pyrazolone 



CsHa.C-N 



MeCH.CO 

 and the isomeric 



4 methyl-3-iso-amylpyrazolone 



Locquin, Rene. Paris, Bnl. soc. chim., 

 (ser. 3), 31, 1904, (595-599). 



3-Methyl l-'i-amyl-pyrazolone 



C5H,,CHC0 ^ 



CMe:N>^^ 

 and the isomeric 



methylisoamylpyrazolone. 



Locquin, Rene. Paris, Bui. soc. cliim., 

 (ser. 3), 31, 1904, (760-762). 



3, 4-Dipropylpyrazolone 



CjHj.CH.CO^^^" 



3, 4-H-iso-Dipropylpyrazolone 



Me,CH.C ^ N 



CjHj.CH . CO^ 



Locquin, Rene. Paris, Bui. soc. chim., 

 (ser. 3j, 31, 1904, (.593 -595j. 



3-Hexylpyrazolone 



N = C.CeH.3 

 ^CO . CH2 



Moureu, Ch. et Delange, R. Paris, 

 Bui. soc. chim., (ser. 3j, 29, 1903, (666- 



672). 



CYCLOID CoHsONs 



6-0xy-2-phenylpyrimidine 



^,p, ^N : C (OH)^^,TT 

 The 4-Amino and 4, 5-diamino- 



DERIVATIVES. 



Traube, ^V. und Herrmann, L. 

 Berlin, Ber. D. chem. Ges., 37, 1904, 

 (2267-2272). 



