IdlO 



880 Cycloids containing oxygen. 



CYCLOIDS WITH FOUE OXYOEN 

 ATOMS. 



CYCLOID C„H404 



Coumalic acid 



C'HLOIiOCOUMALIC ACID 



CC1:CH.C.C02H 

 CO— 0— CH 



and its methyl ester. 



Pechmann, H. von und Mills, W. IT. 

 Berlin, Ber. D. chem. Ges, 37 100-1, 

 (3829-3830). 



CYCLOID CeHeO, 



Methylaconic acid 



-CO 



Ann. Clieni 



Fittig, R. Liehigs 

 Leipzig, 331, 1904, (88-150) 



CYCLOID C6H3O4 



Methylparaconic acid 

 CH,.CO 







COzH.CH.CHMe^ 



Fichter, Fr. viud Rudin, E. Berlin' 

 Ber. D. chem. Ges., 37, 1904, (1610- 

 1C14). 



CYCLOID C;Hio04 



a,7-Dimethylparaconic acid 

 CO.CHMe> 

 6-CHMe' 

 also the ethyl ester and silver salt. 



Fichter, Fr. und Rudin, E. Berlin, 

 Ber. 1). chem. Ges., 37, 1904, (1615- 

 1619; 



^>C'H.C02H. 



CYCLOID C7H7O4N 



Pyromycuric acid 



and the clliyl ester. 

 Baum, E. Berlin, Ber. D. chem. {!es. 

 37, 1904, (2919- 2201 j. 



CYCLOID CsH(,04 



Dioxycoumaranone 



and its cUacetyl and dkhloroacet yl 

 derivatives. 



Feuerstein, W. und Brass, K. Berlin, 

 Ber. 1). chem. Ges., 37,1904,(817-820). 



CYCLOID CaHa04N 



Furoyl- alanine 



and the etJnjl ester. 



Baum, E. Berlin, Ber. D. chem. Ges., 

 37, 1904, (2949-2961). 



CYCLOID C9H6O4 



1 , 3-Dioxychromone 



c.H,(OH),<^^;§;' 



Ruijter de Wildt, J. C. de. Synthese 

 des 1. 3-Dioxychromons. Leiden (J. J. 

 Groan & Sohn), 1902, (45). 23 cm. 



CYCLOID CaHic04 



Cyclogeraniolenozonide ■ 

 Harries, C. und Weil, R. Berlin, Ber. 

 D. chem. Ges., 37. 1904, (845-850). 



CYCLOID C,uHe04 



Coumarin 0-carboxylic acid 



co3H.c,H3<;;jj-v;; 



and its methyl ester. 

 Stoermer, R. und Oetker, E. Berlin, 

 Ber. D. chem. Ges., 37, 19U4, (192-203). 



CYCLOID Cu,H804 



4-Oxymethylcoumarilic acid 



HO.CH2.CeH3<5^jj>C.C02n and its 



Elliyl derivative and etlier. 

 Stoermer, R. und Oetker, E. 

 Berlin, Ber. D. chem. Ges., 37, 1904, 

 (192-203). 



CYCLOID C,,H804 



Furfuraldehyde phloroglucide. 



Goodwin, W. und ToUens, li. Berlin, 

 Ber. D. chem. Ges., 37, 1904, (315-319). 



CYCLOID CiHizO* 



Diacetyldimethylpyrone 



«<cM:;cic>c^^'^'^^*^ 



isomende 0<^^ . Q^^ycAc>^-^^ 



Collie, J. N. London, J. Chem. Soc, 

 85, 1904,(971-980); [abstract] London, 

 Proc. Chem. Soc, 20, 1904, (158-159). 



