Cycloids containing oxygen. 



CYCLOID CsHuOsNz 



Furoyl-1-asparagine. 



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



37, lyra, (2049-2901). 



CYCLOID C-HijOs 



Valactenesuccinic acid 



The Anhydride CgHioOj 



Fittig', R. Liebigs Ann. Chem., 

 Leipzig, 331, 1904, (151-196). 



CYCLOID CioHgOs 



Coumarone i,4-dicarboxylic acid 



CO2H . C6H3<^jj>C . CO2H 



Stoermer, R. and Oetker, E. Berlin, 

 Ber. D. chem. Ge.s., 37, 1904, (192- 

 203). 



CYCLOID Ci H0O5 



Coumarin-keto-acetic acid 



Ethyl ester. 



Enoevenagel, E. und Langensiepen. 

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

 1904, (4492-449G). 



883 1910 



CYCLOID C14H10O5 



9-Methyl-2, 3, 7-trioxyfluorone 



(HO)3CeH2<^'^f^>CeH30(OH) . 

 and the triacctijl derlrat'ive. 



Liebermann, C. and Lindenbaum, S. 

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

 (1171-1180; 2728-2737). 



CYCLOID Ci4H,v05 



Difurfuryl-succinic anhydride. 



Titherley, A. W. and Spencer, J. F. 

 l^aa, ;8;3,-Tetrabronio-s-dihirfurylsuccinic 

 anh3-dride.] London, J. Chem. Soc, 85, 

 1904, (183-192); [abstract] London, 

 Broc. Chem. Soc, 20, 1904, (13-14). 



CYCLOID C14H16O5 



Meconinmethyl ethyl ketone 



^'^^^^^^^)^<^dH.CH,COEt 



Meconinmethyl propyl ketone and 



Meconinmethy'l isopropyl ketone and 



their oximes. 



Luksch, A. Wien, MonHfte Chem., 

 25, 1904, (1051-1064). 



CYCLOID CkHhOs 



Ketodihydroisoapiole 



Bromo derivative 

 CH2<Q>C6Br(OMe)2.CO.Et 



Pond, F. J. and Siegfried, C. R. J. 



Anier. Chem. Soc, Easton, Pa ,25,1903, 



(262-272). 



CYCLOID CHi.Os 



Oxy-dihydroisoapiole 



l)ir,UiiM(.) derivative 



CH2<2>C6Br(OMe)2.CH(OH).CHMeBr 



And its methyl, ethyl, acetyl and 

 benzoyl derivatives. 



Pond, F. J. and Siegfried, C. R. J. 

 Amer. Chem. Soc, Eastou, I'a., 25, 1903, 

 (262-272). 

 (p-9724) 



CYCLOIDS CjsHioOs 

 1, 3-DiOXyflaVOnol (galan<ji») 



and 1, 3-DIMETUOXYFLAVONOL. 



Kostanecld, St. von, Lampe, V. und 

 Tambor, J. Berlin, Ber. D. chem Ges., 

 37, 1904, (2803-2806). 



2, 2'-Dioxyflavonol 



and 2, 2'-I)IMETII0.\YFL\ViiN<>I.. 



Katscbalowsky, A. und Kostanecld, 

 St. von. Berlin, Ber. D. chem. Ges., 37, 

 1904, (2346-2351). 



2, 3'-Dioxyflavonol 



Dimethyl and diacctyl derivatives. 

 Kostanecld, St. von und Ottmann, A. 

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

 (957-960). 



3l2 



