Cycloids containing nitrogen. 



CYCLOIDS C,5Hi20N. 



1, 5-Diphenyl-3-pyrazolone 



/CPh : Cll 



Nri< I 



^Nll : CO 

 Michaelis u. Willert. A., 358, (159). 

 Diphenylglyoxalone. 



P.ISlJROMUlMIKNYI.i.LVdXAUlNE 



\co 



BrCeH^.C.NH 



BrCeH^.C.NH/ 

 BUtz. P.., 41, (1754). 



4-Keto-3-phenyl---methyldihydro- 

 Quinoxaline 



CO.NPh 



G-XlTRn DERIVATIVE. 



Bogert & Cook. Am. Soc, 28, 

 (1149). 



C-Bromo derivative 

 Also the conesponding o-f oZyZ compound. 



Bogert & Hand. Am. Soc, 28, (94). 



CYCLOID Ci5H,202N2 



5, 5-Diphenylhydantoin 



CPh2. NH. 

 CO— NH' 



Also 5, 5-l)is-/>BR0.M0l'HENYLHYDANT0ra. 



BUtz. B., 41, (1379). 



rSG 1932 



CYCLOID CnH,40N, 



4-Benzylidine- 1 -phenyl 3-methyl- 

 pyrazolone. 



The tetra.methyl-i\ 4-di aminouen/.ylidene 



DElilVATIVE 



C6H3.(NMe2)2.CH : C CO. 



I >NPh 



CMe = N'' 



Sachs 11. Appenzeller. B., 41, (91). 



CYCLOID CHhO.N, 



1, 3-Diphenyl-5-methylpyrazole 

 4-carboxylic acid. 



Ethj-l esters of the m and ^J-NITRO 

 derivatives. 

 ,N = C.C6H4N02 



""CMeiC.COjEt 



Minunni e Lazzarini. 59737. 



^>C0 



CYCLOID C15H16O3N2 



i-Phenylcyclohexane-3,4-pyrazo- 

 lone-5-acetic acid. 



Methyl ectek. 

 Meerwein. .V., 360, (323). 



CYCLOID CisHisONz 



i-Phenyl-3-cyclohexyl-5-pyrazolone 

 ^N . NPh 

 X'Hj.CO 

 Warn et Mayer. Bl., 3, (9G2). 



C6HnC< 



CYCLOID C16H10ON2 



9-Oxynaphthaplienazine 



C6H4<i^>C,oH5(OH) 



Kehrmann u. Brunei. B., 41, (1832). 



]SPh<' 



CYCLOID CtHuOsN, 



l-Phenyl-3-benzoyl-4, 4-dimethyl- 

 3, 5-pyrazolidone 



^.p, CU.C-Me, 



N = C.0 rCO.CeHj 

 Michaelis u. Schenk. B., 41, (3865). 



CYCLOID C.oHioOzNz 



Diketo-^yiu-a, (S-naphthazine 



CioH402<<^>CioH6 



Fischer u. ScMndler. B., 41, (390). 



CYCLOID CooHieON. 



-Oxy-/3-naplithyl-3-methyl-5 phenyl- 

 pyrazole 



X=CMe 

 C,oHe(OH).N/ I 



\CPh:CH 

 Franzen u. Deibel. J. i^r., 78, (143). 



CYCLOID CoHssOsN: 



Glycylaminostearic anhydride 



CH2<QQ ■-^T}^>CH.CifiH33 



Fischer u. Kropp. A., 362, (338). 

 CYCLOID C21H1SON4 



Methenyl-bis-phenylmethyl- 



pyrazolone 



NPh.CO ^,„^,,j^^,^CO.NPh 



N : CMe CMe: N 



Betti. G., 36, i, (178). 



