Cycloids containing nitrogen. 



CYCLOID C^iHuO+N: 



Pentamethylenediphthalimide 



C6H,<^|^>N.[cH,]s.N<gg>C,H, 



Braun, J. von. Berlin, Ber. D. cliein. 

 Ges., 37. 1904, (3583-358SI 



CYCLOID C24Hi20:N; 



1', 2 -Naphtha--, 3-anthraquinone- 



azine. 

 Scholl, R. iiud Kacer, F. Berlin, Ber. 

 D. chem. Ges., 37, 1904, (4531-4534). 



CYCLOID C26H20O2N. 



Indophthalone. 



Renz, C. Berlin, Ber. D. chem. Ges., 

 37, 1904, (1221-1225). 



CYCLOID CviHnOjN. 



9', iO'-Phenanthro-2, 3-anthra- 

 quinoneazine. 



Scholl, R. und Ka6er, F. Berlin, Ber. 

 D. chem. Ges., 37, 1904, (4531-4534). 



CYCLOID C2aHi602N2 



o, ^-Dlphenyl-2, S-anthraquinoxaline 

 quinone. 



SchoU, R. uml Kacer, F. Berlin, Ber. 

 D. chem. Ges., 37, 1904, (4531-4534). 



925 1&30 



6-chloro-5-brouo-2-sl;lphydropyrimidise 

 Ethyl ether 



^<CCl.CBr >'-^ 

 Also the Ethyl ether of S-Brouo-G-amino- 



SL'LPinDRO-PYlUMIDINE. 



Wheeler, H. L. and Johnson, T. B. 

 Amer. Chem. J., Baltimore, Md., 31, 

 1904, (591-606). 



CYCLOID CsHsNjS 



Sulphydromethylpyrimidine. 



6-CHLORO-2-SUI.PHYDRO-5-ilETinL- 



PYRIMIDISE. Ethyl ether 



^<CCl.CiIe >^^ 

 Also the Ethyl ether of 6-Amiso-2- 



SuLrim)R0-5-METHYLPYRIMIDINK. 



Wheeler, H. L. and Johnson, T. B- 

 Anier. Chem. J., Baltimore, Md., 31, 

 1904, (591-606). 



CYCLOID CoHeN.S 



Thioketodiliydroquinazoline. 



Bogert, Marston T., Breneman, H. C. 

 and Hand, \Y. F. The synthesis of 

 alkylthioketodihydroquinazolines from 

 anthrajiilicnitrile. New York, N.Y\, 

 Cont. Havemeyer Lab., Columbia Univ. 

 No. 76 In J. Amer. Chem. Sec, Easton, 

 Pa., 25, 1903, (372-380). 



CYCLOIDS WITH TWO KITROGEX 

 ATOMS AXD SULPHUR. 



CYCLOID C4H.N2S 



Sulphy dropyrimidine . 



{2-Tliiopyrimidine}. 



4, r)-DlAMIN"0-2-THI0PYRI.VIIDINE 



^^ NH.C(NH) ^,jj 

 *"'^^NH.C(NH)^^"2 



4, 5, 6-TRIAMIKO-2-SULPHTDROPYRIMIDINE 



HS.C<*^;^|gg^J>C(XH,) 



And the 6-Aiiiso {thioadenine) derivative. 



Traube, W. Liebigs Ann. Chem., 

 Leipzig, 331, 1904, (64-88). 



CYCLOID C9H3N2S 



4-Thioketo-2-methyl-dihydro- 

 quinazoline 

 X : CMe 

 ^«^^<CS . XH 



Bogert, M. T., Breneman, H. C. and 

 Hand, \V. F. J. Amer. Chem. Soc, 

 Easton, Ra., 25, 1903, (372-380). 



6.8-DlBROMO-DERIVATIVE 



N : Cife 

 CeHjBr, <^^^^ 



Bogert, M. T. and Hand, W. F. J. 

 Amer. Chem. Soc., Easton, Pa., 25, 

 1903, (935-947). 



