Cycloids with several elements. 773 



CYCLOID C2 HnOzN, 



l,3-Dimethyl-7-benzyl-'S-phenyl- 

 xanthine 



{7-Beiizyl-S-phenijltlieop]njirtn). 

 Traube, \\'. mul Nithack, W. I.e. 



CYCLOIDS C20H13O4N4 



Diphenyldimethylhydantil. 



Gabriel, S. Liebios Ann. Cliem., 

 Leipzig, 350, 190G, (118-134^ 



l,3-Diniethyl-7-oxyb6nzyl-S-oxy- 

 phenylxanthine 



(7-0xijheiizijl-S-o:cijp]i('nultlieophijUiii). 



Traube, W. und Nithack, W. Berlin, 

 Ber. D. cheni. Ges., 39, I9U6, (227-235). 



CYCLOID C23H22ON4 



Anhydroisopropylenebisphenyl- 

 methylpyrazolone 



and its salts, dibromide and dixitro 



DERIVATIVE. 



Micbaelis, A. imd Zilg, A. t.c. (370- 

 38 Li. 



CYCLOID C2.H,,02N4 



p-Phenylene-di- 1 -phenylene- 

 dipyrazolone. 

 Berend, L. und Herms, P. J. prnkt. 

 Cheni., Leipzig, (N.F.), 74, 1906, (112- 

 Ul). 



CYCLOID C24H26O2N4 



Anliydrobutylenebisphenylmethyl- 

 pyraz clone 



Michaelis, A. und Zilg, A. Berlin, 

 Ber. D. chem. Ges., 39, 1906, (370-381). 



CYCLOID C27H22ON4 



Benzylidenephenylmethyl- 

 pyrazolonepyrazole 



and its salts and dibromide. 

 Michaelis, A. und Zilg, A. I.e. 



CYCLOID C2 7H22 0;N4 



Benzylidene-bis-phenylmetliyl- 

 pyrazolone. 



Michaelis, A. und Zilg, A. I.e. 

 CYCLOID C41H24O4N4 



Diphenantliraphenazine ketone 



Consonno, C. Gazz. chim. ital., Roma, 

 34, i, 190i, (374-387). 



1940 



CYCLOID CS3H36O3N4 



Diplienyldiphenanthraphenazone 

 ketone 



V '^N c.cw, 



Consonno, F. Gazz. cliini. ital., Roma, 

 34, i, 1904, (374-387). 



CYCLOID CONTATNI^XI FOUR 

 NITROGEN ATOMS AND SUL- 

 PHUR. 



CYCLOID C5H4N4S 



S-Mercaptopurine. 



Isay, 0. Berlin, Ber. D. chem. Ges., 

 39, 1906, (250-265). 



1940 CYCLOIDS CONTAIXIXG 

 SEVERAL ELEMENTS BESIDES 

 CARBON. 



CYCLOIDS WITH OXYGEN AlS'D 

 SULPlfUR IN CLOSED CHAINS. 



Mauthner, F. Pheno.xthin und Napli- 

 oxtliin. Berlin, Ber. D. chem. Ges., 39, 

 1906, (1340-1347). 



CYCLOID C9H14O3S3 



Duploacetylacetonetrioxytii- 

 sulphide. 



Fromm, Vj 



(3599-3600). 



und Ziersch, P. 



CYCLOID CsHuOsSs 



Duploacetylacetonepentaoxytri- 



sulphide. 

 Fromm, E. und Ziersch, P. J.c. 



CYCLOID CnHsOS 



Plienoxthine 



C6H4<'^>C6H, 



and the 2-CARnoxYLic acid. 

 Mauthner, F. t.c. (1340-1347j. 



CYCLOID CizHsOiS 



Plienoxthine dioxide 



CgH^^gQ >-C6H4 

 Mauthner, F. I.e. 



