Cycloids containing nitrogen. 550 



1931 



cycloid C iS H 21 N 

 Hexamethylacridine. isomerides. 

 A a Hexamethyldihydroacridine 



C 19 H 23 N. 

 Liebermann u. Kardos. B., 47, 

 L573 



CYCLOIDS WITH ONE NITROGEN 

 ATOM AND OXYGEN. 



CYCLOID CjH ON 



Pyrrole --carboxylic aldehyde. 



Alessandri. 109043. 



Tschelinzefl u. Terentzeff. B., 47, 

 (2652 . 



CYCLOID CeHiON 



Pyridine --carboxylic aldehyde 



< H 4 X.CHO 

 Lenart. B., 47, (808). 



CYCLOID C 6 H 9 2 N 



Dimethyltetramic acid 

 vrrr^Cile^CO 

 CO . CH 2 

 Gabriel. B., 47, 3033). 



CYCLOIDS C H 5 0<N 



Lutidinic acid 

 0(CO 2 H :CH. 



<(CO,H..X 

 Methyl ester, chloride, amide and 



DIHTDRAZ1HE. 



Meyer u. Tropsch. M., 35, (189). 



Dinicotinic acid 



CM ^CC0 2 H, . CH>- N 

 And its methyl ester, dihydrazide and 

 cldoride. 

 Meyer u. Tropscb. AI., 35, (207, 781). 



CYCLOID CH, 3 2 N 



2-0xy-- : 1 : Krimethyl-5-pyrrolidone 

 NH< CMe(OHj.CH 2 



CO CMe 2 



HaUer et Bauer. C.R., 158, (1086). 



CYCLOID C,H,0 2 N 



Isatin C 6 H 4 <°°>C0 



Borscbe a. Sander. 109755. Isatin 



und seine Derivate. II. Isatoxim o- 



Cvaii-pheinl-isocyanat und verwandte 

 Reaktioneu. 



Halogen derivatives. 



Grandmougin u. Seyder. B., 47, 



(236G). 



Diacetyl derivative of the oxime 

 XXNOAc 



C 6 H 4 < 



NAc.CO 



> 



Kohn u. Ostersetzer. M., 34, ; 1 . 11 



CYCLOIDS CH,,0N 



--Acetyl-3-5 dimethylpyrrole and 3- 

 Acetyl-2 : i- dimethylpyrrole- 



"XIMES and PHEHYIHYDRAZONE8. 

 Vecchi. 115774. 



CYCLOID C H n ; N 



2-Methyl-3-ethylpyn'ole i-car- 



boxyhc acid. 

 Piloty el alii. A., 407, (1-12). 



CYCLOID C 8 H lb 0N 



1:2:1: l-Tetramethyl 5-pyrrolidone 



XM CHMe.CH, 



CO CAIe 2 



Haller et Bauer. C.R., 158, (1086). 



CYCLOIDS C 9 H : 0N 



,\ : C.OH 



Carbostyril cyi 4 < 



CH:CH 



Meyer u. Beer. Erne neue Svnthese 

 des Carbostyrils. M., 34, ( 1 1 73 . 



Carbostykil sdlphubic acid. 



C 6 H 4 < ' . Potassium salt. 



X — COS. » 3 H 



Czapek. AI . 35, (641). 



8-0xyquinoUne silpui ric acid 

 C 9 H 6 X.US0 3 H. Potassium salt. 

 Czapek. M., 35, (641). 



CYCLOID C H 0;N 



MethyUsatin c eH«<^ e >CO 

 Preparation and bromo derivatives. 

 Konn u. Ostersetzer. M., 34, (787). 



Acetoxime. 

 c u C(NOAc) 

 ° 6U<< NMe.CO > 



Also the oxiine of 1-AIethyl-5- 



BROMOISATIN. 



Kohn u. Ostersetzer. M., 34, (1743 



