Cycloids containing nitrogen. 829 



1931 



CYCLOID C5H6O4N 



Comenamic acid 



and its methyl ether methyl ester 

 vr^C(C02Me).CH^p f.xT 

 -^^CH:C(OiIe) ->^-^"- 



Meyer, H. .M., 26, (1311). 

 CYCLOIDS C6H7O2N 



Oxymethylpyridone 



[From ric'm'me] 

 and its mono-, di- tetra-bromo and 



NITRO DERIVATIVES. 



Maquenne et PWlippe. Bl.,33, (103). 



3- Oxy-- -methyl-4-pyridone 

 Methyl etiieu and .vcetyl derivative. 

 Peratoner e Tamburello. 50466. 



CYCLOID CsHgON 



Tetrahydro pyridine aldehyde 



and its oxiME and diethylacet.ate 

 Also the n-benzoyl derivative. 



Wohl u. Losanitsch, M. S. li., 40, 

 ^4685). 



CYCLOID CeH.OjN 



Pyrrolidone acetic acid 



CUj.L'U, 

 CH2.CO 

 Tafel u. Wassmuth, 0. I!., 40, (2831). 



^>X.Cli2.C0,H 



CYCLOID CHnON 



/3-Piperidine aldehyde 

 ^'^<cn2'cii(CH())>^^2 



Wohl II. Losanitsch, M. S.. 1!., 40, 

 (4685). 



CYCLOID C.HnO.N 



N-Methyl-5-oxy-a-piperidone 



^0<^v't-h'l[^>CII(OH) 



~N.Me.(Ml2 



Leuchs u. Splettstosser, 0. 

 (301). 



(D-8536) 



B., 40, 



CYCLOID CtHbON 



Anthranil 



4-Xitro-antheaxil 



Acetyl derivative X02C6H3-< . 



NAc 



Bogert. Am. Soc, 27, (1305, 1327). 



6-Nitro-asthra:sil 

 Acetyl derivative. 

 Bogert & Chambers. Am. Soc, 27, 



(649). 



Schroeter, G 



Axthranoylakthrakil 

 -N 

 . CO' 

 B., 40, (1610). 



>CsS, 



CYCLOID C7H5O2N 



Quinolinic acid CsHjiNXCO^Hj^ [2 : 3] 



Kiipal, A. M., 27, (363). 



CYCLOID C7H5O5N 



Chehdamic acid 



*^^L'(CU2H):CH'>*^-^^ 

 Iiimethyl ester. 



Meyer, H. M., 26, (1311). 

 CYCLOID CiHuON 



N-Methyl-A -tetrahydropyridine 

 aldehyde 



{Arecaidine aldehyde) 



^^^«<cS::cfcHO)>CH 

 Wohl 11. Grosse, E. B., 40, (1719). 



CYCLOIDS C7H11O2N 



a.a'-Dimethylpyrroline a- carboxylic 

 acid 



CU : CMe ^.^ 



Oil,. e'.Med'OJI) 



Zellnsky u. Schlesinger, N. B. 



(2886j. 



40, 



N-Methyl-A -tetrahydronicotinic 

 acid 



(Arecaidine) 



Syntheses of, also of the methyl estek 

 {arecoliii). 



Wohl u. Johnson, A. B., 40, (1712). 

 3 1 2 



