Cycloids containing nitrogen. 555 



1932 



cycloid C«H,0.N 

 Hydrazimethane tricarboxylic acid 



1 ?>CH.CO,B 



i( \ 



I'.lllVI. B8TEB. 



Muller l: , 47. 3001 . 



CYCLOID C H.O.N, 

 ■ Indazolequinone 

 „CH, 



" :< \ 



FrleB ii. Roth 



>NH 



A., 404, 39 . 



CYCLOID CHeON 



CH 



X 

 A., 404, (84) 



6-0xyindazole HO.C,H 3 < 

 Fries u. Roth. 



>NH 



CYCLOID C:H.-0 2 N, 



6 : 7 Dioxyindazole 



C 6 H t (01I ,<9 H >NH 



N 



Fries u. Roth. A., 404, (91). 

 CYCLOID C H, 0*N 2 



Diiminosuccinylosuccinic acid 



aa L< CH 2 .CH(C0 2 H) >O • Nti 

 Liebermann. A. 404, (290). 



CYCLOID CioHio0 2 N, 



5-Carboxymethyl-2-metnyl- 

 benzimidazole. Nitrius. 



CH,.C<j^>C 6 H3.CH 1 .CN 



Maron et alii. B, 47, (1349). 



CYCLOID C 12 H s ON 2 



3-0xyphenazine. 



2-Amiso derivative. Synthesis. 

 C,H 4 : N' 2 :C,H, OH NH, 



Kehrmann u. Kissine. B., 47, (3100). 

 CYCLOID C l3 H,nON 2 



•°>-Oxy-methylphenazine 



"_' Amiho derivative. 

 MeC 6 H s : N 2 : C,Hj OH NH, 



Kehrmann u. Kissine. B., 47, (3100). 



CYCLOID CmH 0,N, 



Perinaphtbindantrioneureide 

 CioH 6 <gg>C<J}g>CO 

 And its methyl and ethyl derivatives 

 Calderaro. G., 44, ii, 389). 



CYCLOID C, 4 H 18 0N, 

 Tetramethylpyrrindolone. 



Piloty et alii. A., 407, (1-42). 



CYCLOID C 1P H a 4 N 2 



Dioxypyrazinoanthraquinone 

 ,N:C.OH 



C,H 4 :(CO) 2 :C,H 2 < 

 Ertl. M., 35, L427 . 



X COB 



CYCLOIDS CwHioOjN, 



Indigo. 



Engi. 110681. Xeue Derivate des 

 Indigos und anderer indigoider Farb- 

 stoffe. 



Friedlander u. Risse. 1 1 1012. Indigo- 

 ahnliche Farbstoffe. 



Grandmougln u. Seyder. 111325. 

 Halogeniorte Indigo unci Derivate. 



Kunckell. 

 des Indigos. 



112606. Xeue Derivate 

 113078. Xeue Indigo- 



Madelung. 

 Synthesen. 



Reissert. 114400. Versuche zur 

 Darstellung substituierter Indigos. 



Wagner. 115866. Vorgange bei der 

 Oxydation von Indigo. 



5:7: 5' : 7'-TetrachL0R0- ; 4:4:5: 5'- 



DlOHLOROBIBBOMO- ; 4:7:1': 7'-TtTRA- 



CHLORO- ; OCTOOHLORO- ; 6 : O'-MlBROMO- ; 



6 : 6'-DlOBO- and 6 :6'-DlAMIHO- 



5:7:5: 7'-TETRABBOMOINDIGO. 



Orandmougin u. Seyder. B., 47, 



(2365). 



Isoindigotin 



AH 4 > 



X! 6 H 4 . 



ra<ay>o:c<3ff>ra 



Bigiiidolindigo) 



DlSDLPHONIC AOID and BBOMO- and HITBO- 



I80INDIG0TDJE. 



Wahl et Bagard. Bl. [4], 15. 



