Cycloids containing nitrogen. 



0.4-Dioxybenzylideneoxindole 



and tlie mktiiyi.p:xe ether 



C3H5ON : CH.CeHs : 0^ : CHj 



(Piperonylideiieoxlndole). 



Also p-OXY-OT-METHOXY-BENZYLIDENE- 



OXlXDOLi: iVcinilh/UJene-ox'nidole). 



AIj^o i'.4-Dioxybenzylideneoxindole- 

 Wahl e! Bagard. Bl., 5, (1037). 



CYCLOID CsHisOjN 



a-Piperonallutidine. 

 Bramscli, W. lUCSa B., 42, (1193). 



CYCLOIDS CisHioON 



o-0xy-a',7-dimethyl-a-stilbazole. 

 Bramsch, W. 04053. B., 42, (1197). 



p-Methoxy-a'-methyl-a-stilbazole. 

 Proske, B. B., 42, (1453). 



CYCLOID CsHisOoN 



1 -B enzyl-i'-methyl-propionyl- 

 pyiTolidone. 



Ami the oxlmk. 

 Kuhling, 0. u. Frank, L. B., 42, 



(3951'). 



CYCLOID Ci HnOzN 



a-Phenylcinchonic acid 

 ' ' X- ^ CPU 



MeTHYI. ESTER. 



Meyer. M., 28, i33). 

 DiketodiphenylpyiTolone, oxime and 



I'HKXYLHYDr.AZiiNE 



CO— CO 



CPli : CPli 



Ruhemann. 70537. 70538. 



>XH 



CYCLOID CieHisON 



'.-Phenyl-^ -methyl-isocarbostyril 



X'O . NH 

 Cell3^1e< 



\CH : CPh 



MuUer, E. B., 42, i4l'0). 



CYCLOID CioHuOjN 



Diketodiplienylpyrrolidine . 



co- 



-co 



>XH 



CHP^i.CHPh 



DiBROMO-DERIVATIVE. 



Ruhemann. 70537. 70538. 



1931 

 CYCLOID CieHisO.N 



Piperonal-7-collidine. 



Bramsch, W. G40.')3. B.. 42, (1194). 



CYCLOID CH.sO.N 



1 : -Dihydropapaveroline 



ami its UVKUnCUI.i.lUIDE. 



Pyman. 7(M)1I,;. 



CYCLOID C, Hr.ON 



p-Methoxy-a',7-dimethyl-a- 

 stilbazole. 

 Proske, H. B., 42, i 14.10'. 



CYCLOID CUH17O4N 



Tetrahydropapaveroline. 



Pyman. 



IlYriRoCHLORIME 



70093. 



CYCLOID CitHhOjN 



2 : 3-Diketo-4-phenyl-5- 

 piperonylpyiToline 



ami its i-hexylhydrazone. 

 Ruhemann. 70538. 



CYCLOIDS C17H13ON 



a,a'-Diphenyl-7-pyridone. 



Petrenko-Kritschenko, P. u. Schottle, 



B., 42, (201' 1). 



2-Methyl-3-benz oyl- quinoline . 

 stark, 0. B., 42, (717). 



CYCLOIDS CwHuOcN 



2 : 3-Diketo-4-phenyl-5-c) m- and 

 p-tolylpyrrolines 





CO- 



-co 



>NH 



CPh : CtCeH.Me) 

 and their phenylhydrazixes. 

 Ruhemann. 70537. 70538. 



CYCLOID Ci7Hn03N 



2 : 3-Diketo-4-phenyl-5- 

 anisylpyiToline 



and its riii^XYLUYEiRAZOXE. 

 Ruhemann. 7ii5'iS. 



CYCLOID Ci7H;30N 



Benzoylcamphidine. 

 Braun, J. v. B., 42, (_143li. 



