Cycloids containing nitrogen. 554 



1932 



CYCLOID OuHisNi 



Tetramethyldipyrrylmetliane 

 CMe : CH\ C CH . C< CH : C.Me 

 NH.CMe ' ' " CMe:N 

 ami similar compounds. 



Piloty et alii. B., 47, (2531). 



CYCLOID C 13 H 18 N 2 

 Di(-2 : 4-dimetliylpyrryl. methane 



r?. H - cM %c 1 ch s 



aud derivatives. 

 Fischer. B., 47, (3266). 



CYCLOID C, f H, N; 



Diindyl 

 C 6 H 4 <™>C.C<g|>C 6 H 4 



And its [SONITROSO derivative. AJso 

 jS-AMlNODIDlDYL, DIAMINODIINDYL and 



IM1KODIINDTL. 



Madelung;. A., 405, (61). 



CYCLOID CitH^N: 



a-Methyl-f u-diphenyl-pyiirnidine 



C 6 H 5°<n. : CM^ CH 



Asahina u. Kuroda. P>., 47. 1815). 



CYCLOID C i7 H 20 N 2 



Propylenephenylenexylylene- 

 diamine uH 4 < CH - XH| . t|]j >CH 2 



Scholtz B .47, 211 



CYCLOID C,7H 24 N 2 



Bi-f ethyldimethylpyrryl -methene 

 C 4 HEtMe 2 N.CH : C 4 EtMe 2 N 



Piloty et alii. 15 . 47, 403). 



CYCLOID C 18 H I6 N 2 



3 : 5-Di-p-tolyl-pyridazine 



r , n r .XH:C(' ; II 

 C T H 7 .C< X N : ' c ft> 



Almstrom. B., 47, (819). 



CYCLOID C 22 H 16 N 2 

 l : l'-Dimethyl-3 : 4:3': I'-naphth- 

 azine CH,.C, H 6 : N, : C 10 H 5 .CH, 

 Lesser. A., 402, (29). 



CYCLOID C. 5 H 2 ,N. 

 l : 5-Diphenyl-3-a-naphthylpyra- 

 „N— NPh 



^CH 2 .CHPh 

 Albrecnt. .M.. 35, (1493). 



zoline C 10 H, (.'<" 



CYCLOIDS WITH THREE OR 

 MORE NITROGEN ATOMS. 



CYCLOID C9H9N3 



3-Imino-5-pnenyl-pyrazolone 



CPh = N 



>X1I and derivatives 



CH 2 .C(NH) 

 Meyer. J. pr , 90, (8). 



CYCLOID C,aH„N, 



Imino-;> tolyl-pyrazolone 



• 7 7 >NII and derivatives 

 CH 2 .C(NH) 



Meyer. J. pr., 90, (2). 



CYCLOID C 16 H 12 N 4 



Indigodiimine 



C 6 H 4 < C ^)>C:C< C ™>C 6 H 4 



Also DEHYDROINDIOODIIMINE C 16 H 10 N 4 



Madelung. A.. 405, (79). 



CYCLOIDS WITH TWO NITROGEN 

 ATOMS AND OXYGEN. 



CYCLOID C 2 H 4 2 N : 



Hydraziacetic acid 



NH 

 . >CH.CO,H 



NH 



Mliller. B., 47, (3001). 



CYCLOID C.rLC^N, 



Hydrazimethane dicarboxylic acid 



CH,< . i hTHTL ESTER. 



N.CO,H 



Miiller. B., 47, (3001). 



CYCLOID C 4 H\0 3 N 2 



co NH.rom. r 

 ou< xiir,(jH)>° 



Salts and derivatives. 

 Biltz. A., 404, (186). 



