1930 



900 Cycloids containing nitrogen. 



CYCLOID CtHsON 



a-Picolylalkine C'sH.X .C'H^.CH^OH 



( Uxiiet]iyl-a-p}coUne) 



Action of hydrogen iodide and hydrogen 



bromide : formation of pyridonium 



compounds. 



LofBer, K. Berlin, Ber. D. chem. Ges., 

 37, l'J04, (161-174). 



CYCLOID CtHqO.N 



2, 5-Dimethylpyrrole 

 3-carboxylic acid 



Methyl ester — synthesis from chloro- 



acetone, methylacetoacetate and 



ammonia. 



Korscliun, G. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (2196-2197). 



CYCLOIDS C7H9O3N 



2, 4, O-Trioxy 5-ethyIpyridine 



2, 4, C-Trioxy-3, 5-dimethylpyridine 

 ..„ CO.CHMe^p.. 

 "^^<CO.CHMe>*"^ 

 Baxon, H., Remfry, F. G. P. and 



Thorpe, J. F. London, J. Chem. Soc, 



85, 1904, (1726-17r.l). 



CYCLOID C7H15ON 



Pipecolylalkine 



(Oxyethyl-piperidine) 



Iodide CsHioX.CHj.CH,.!, HI 



also the chloride aiid its gold salt. 



LoefBer, K. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (1879-1899). 



CYCLOID C HiON 



Isatin 



Buraczewski, Joseph. Studien iiber 

 Isatin. Pliil. Diss. Sect. II. Ziirieh, 

 1901-02. Krakau, 1902, (35). 8vo. 



Phthaliraide 



V. Imihes. 1660. 

 CYCLOID C8H7O2N 



Dioxindole 



Mono and dibenzmyl deriv.vtives. 



HeUer, G. Berlin, Ber. 1). chem. 

 Ges., 37, 1904, (938-950). 



CYCLOID C 0H7O4N 



2-Methylpyridine -i. 6-dicarboxylic 

 acid 



^<C(C02H):rH'^'"-^^-^^ 



Jong, A. W. K. de. [Die Uvitonsaiire 

 (2-niethylpyridine-4.G-dicarbonsaure) als 

 Endprodnkt der] Spaltung des Pyrotran- 

 bensauren Ammonimns[in neutrnler und 

 in alkalischer Losung]. (Holliindisch) 

 Handl. Ned. Nat. Geneesk. Congres, 9, 

 1903, (165-168). 



[L'acide uvitonique, pro- 



duit final de la transformation du pyru- 

 vate d'ainmonium.] Rec. Trav. chini., 

 Leiden, 23, (131-146). 



CYCLOID CaHiON 



Methylenemethylolpicoline 



C5ll4N.C(Cll2).CH2.0H 



Salts, acetyl and benzoyl ethers. 



Lipp, A. und Richard, .J. Berlin, 

 Ber. I), chem. lies., 37, I9t)4, (737- 

 746). 



CYCLOID C,H,04N 



2, 5-Dimethylpyriole dicarboxylic 

 acid 



The N-I'Henylhydeazide oxalamide of the 



ethyl E.STER, C2oH240eN4 



Btilow, V. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (2424-2428). 



CYCLOID CaHOsN 



2, 4, 6-Trioxy-'>-etliylpyridine 

 3-carboxylic acid. 



Ethyl ester 



^^<C0.CH(C02Et)>*^^' 



Baron, H., Remfry, F. G. P. and 

 Thorpe, J. F. London, J. ChenL Soc, 

 85, 1U04, (1726-1761). 



CYCLOID CsHuON 



Oxypropylpyridine 



(P'tcolylniethylalh/ne) 

 C5H4X.CH2.CH(OHj.CH3 



Lbffler, K. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (161-174). 



