Cycloids containing nitrogen. 691 



1932 



NH2.C6H2Me<, 



2 : 3-Dimethyl-^-quinazolone. 



7-Amino coMPO(;>iD 



and its acetyl derivative. 



Also acetylamino-2-viet]iyl-3-ethyl-'i- 



quinazoJone and 7-acetyhimino-2-met}iyl- 



3-n-propylA-qui7iazolone. 



Bogert. Am. Soc, 32, (1279). 

 2 : (S-Dimethyl-i-quinazolone. 



7-Ami\o compounhs 

 ,N = CMe 

 TO. Nil 

 And the acetyl derivative. 



Bogert & KropflF. Am. Soc, 31, (1071). 



l-Phenyl-S-methyl-'J pyrazolone. 



4-Aniunometiivli;ni'; compound 



^ '■^^^^>G : CH.NIIPli 

 NPh.CO 



And rorrespondiuij 0-naphthylamino- 

 metliylene-l-plienyl-3-met li yl.-5-pyrazo- 



lone and similar piir(tzolones witli 

 p-hromophenyl-, p-tolyl-, 'l-ciimyl- and 

 p-etJioyyphenyl in place of 0-naphthyl. 



Dains it Brown. Am. Soc, 31, (1 148). 

 CYCLOID CHsOiNz 



1-Phenyl-ii-pyridazone 3-carboxylic 



acid. 5-lienzeneazo-compound 



N'"l'<CO.?(S^h,'>°'' 



And the corresponding m-xylyl 

 compound. 



Henrich, A. 376, (1.30). 



CYCLOID CoHioO Nz 



u-Ethylbenzimidazole carboxylic 



acid [i 3] COji.C6H3<^j}^>CEt 



Methyl ester. 

 Einhorn u. Uhlfelder. A., 371. (105). 



CYCLOID CiiHsOzNj 



5-M ethylbenz obispyraz clone 



ctr<— ^'•^'^^' 



' '^CO.N.CO 

 Michaelia. A., 373, (151, 202). 



CYCLOIDS CiiHioOjN2 



3-Phenylpyrazole-l-acetic acid. 



5-Cldoro derivative. 

 Michaelis u. Schmidt. P.., 43, (2116). 



i-Phenyl-3-methyl-pyrazole 

 o-carboxylic acid 



?*'-;;,>N.O.H..CO,H 



A-Bromo derivative. 



Also i-chloro derivative of the p-car- 



ho.ryHc acid. 



Michaelis. A., 373, (210). 



CYCLOID CnHioOaN. 



i-Phenyl-5-methyl 3 pyrazolone 

 0- m- and p-carboxylic acids 



Michaelis. A., 373, (206, 213). 



1 -Phenyl-3-methyl-5-pyrazolone 

 o-carboxylic acid 



And the i-henzene-azo derivative. 

 MichaeUs. A., 373, (166). 



CYCLOIDS CiHuONz 



1 - Phenyl-3 methyl-5-oxymethyl- 

 pyrazole. 



Benary. P.., 43, (1005). 



3- »(-Propyl-4-quinazoline 



^ '=^^C0 .N.C3H, 

 Bogert & May. Am. Soc, 31, (507). 



CYCLOID CijHioOaNz 



l-Phenyl-3-methyl-pyrazole 

 4 o-dicarboxylic acid 



CH3 . C: N 

 CO2H. C:CH' 



5-Chloro derivative. 

 Michaelis. A., 373, (172). 



^>N.C6H4.C02n 



CYCLOID C,2Hi202N2 



1-Phenyl-l : 5-dimethyluracil 

 NPli.CO .Cile 

 CO .NH.CMe 

 Bremer. A., 378, (199). 



