Cycloids containing nitrogen. 



J50 



1931 



CYCLOID CuHc04N 



Trioxypyridone 



m,p,2-TRIOXT-3.5-DICYAXOPTEIDONE 



m-ilethyl and m, p-diine'liyl ethers. 



Piccinini, G. Torino, Atti Ace. sc, 

 39, lyOJl, cl02i-1045). 



CYCLOID CnHuO.N 



Tolylsuccinimide 



p-AiIINOTOLYL!<UCCINIMII)E 



NH2.CeH3Me.X<g^>C2H, 



Meyer, R. Liebigs Ann. Chem., 

 Leipzig, 347, 1906, (17-54). 



CYCLOID CnHi 0:N 



X-Ethylmeroquinene 

 and the niteile and ethyl ester. 



Rabe, P. op. cH. 350, 190G, (180- 

 203). 



CYCLOIDS Ci:H;;0;N 



)3-Ethylciuchonic acid 



C(CO,H; : CEt 

 ^■^^^% CH 



and its salts, metJiylhetain and chloride. 



Mulert, E. Berlin, Ber. D. chem. 

 Ges., 39, 1906, (1901-1908). 



5-Phenyl-2-methyl-pyrrole 

 3-carboxylic acid 



Ethyl ester KH<^^^ " ^'^ 



^CMe : C.COjEt 



Also tlie 4-CARBOXYLir acid derivative. 



Borsche, W. nnd Pels, A. t.c. (3877- 

 3886j. 



CYCLOID Ci.HnO.N 



«-0xy-;8-ethylcinchonic acid 



and its salts and chloride. 

 Mulert, B. t.r. n901-]908). 



CYCLOID Ci,H,50iN 



Hydrocotamine 

 ETinx, I'ROPVi. and isoproi'vl, o-isonrrrL, 

 j-METHYL- riiEXYL, o-NAriiruYL and o- 



BF.NZYL DERIVATIVES. 



Freund, M. und Reitz, H. H. t.c. 

 (2219-2237;. 



CYCLOID C12H; ON 



Pulegoneacetamideanhydride. 



Vorlander, D., May, A. nnd Konig, W. 



LiebiiTs Ann. Chem., Leipzig, 345, 1906, 

 (188-205). 



CYCLOID C12H1SO3N 



Lactam of aminomentlianedicarb- 

 oxylic acid 



XH.C'O 



Clarke, R. "\V. L. and Lapworth, A. 

 London, J. Chem. Soc, 89, 190C, (1869- 

 1882) ; [abstract] London, Proc. Chem. 

 Soc, 22, 1906, (285). 



CYCLOID C13H9O2N 



a-Malonaphtliil C,oH,X<^[]>CH2 



Meyer, R. Liebigs Ann. Chem., 

 Leipzig, 347, 1906, (17-54). 



CYCLOID CisHqON 



mp-Dioxyphenyldiketotetrahydro- 

 pyridine dicarboxylic acid. Xitrile 



(HO l2CeH3.C<gg^77 [,[3>XH 



and its dimethyl ether and ammonium 

 salts. 



Piccinini, G. Torino, Atti Ace. sc, 

 39, 1904, (1024-1045). 



CYCLOID CuHjjO N 



Piperidyloctenoic acid. 



PlPERIDYLOCTENONITRILE 



CsII^oN.C.XCsHi,) : CH.CX 



Moureu, C. et Lazennec, [1.]. Paris, 

 C.-R. Arad. sci., 143, 1906, (553-555). 



CYCLOID C14H N 



Pyrophthalone 



identical witli isopyroplitlialone. 



Eibner, A. und Lobering. il. Berlin, 

 Ber. D. chem. Ges., 39, 1906, (2447- 

 2450). 



