Cycloids containing oxygen. 



S09 



1911 



CYCLOID C16H14O2 



Xanthylacetone 

 OLC6H4J2Cii.CH2.Co.CH3 



Fosse. Bl., 35, (1005). 



CYCLOID CzoHi.Oz 



m-Oxytritanic acid lactone 

 Liebig u. Keim. J. pr., 76, 1^275). 

 CYCLOIDS CsnHieOa 



o-Tolylxanthenol-9 



(Carbinol base of toliilxanthylmm) also 



the ferric chloride double salt of tolyl- 



xaiithylkiiu. 



Decker u. Fellenberg, S. von. A., 356, 



(2S1). 



Oxydiphenyldihydrobenzofurfurane 



^6^^<CPh(0H)>*^ 

 Guyot et Catel. BL, 35, (1124). 

 CYCLOID CjiH.eOz 



Xanthylacetophenone 

 0[C6H,]2CH.CH2.CO.C6H5 

 Fosse. BL, 35, (J 005). 



CYCLOID C22H20O2 



4'-Isopropyl-a-naphthoflavanone 



p Tr ^O . CH.CeH^.CHilez 

 ^'"^^^CO.CH 

 Kostanecki, St. von. B., 40, (3669). 

 CYCLOID C26H20O2 



Oxytriphenyldihydrobenzofur- 

 furane 



^•^^^^^CPMOHi^*-^ 

 Guyot et Catel. BL, 35, (551). 



CYCLOIDS WITH THREE OXYGEN 

 ATOMS. 



CYCLOID C6H4O3 



Pyromucic acid 



NiTROl'YIlOMUCIO .vc;iD 

 C4H20(N02).C02H 



Ethyl ester, methijl ester, chloride, 

 amide, anilide and p-toluide. 



Marquis. BL, 31, (1277). 



Aminopyro.muoio acid 



C4H20(NH2i.C02H 



Ethyl eater and \ts acetyl derivative 



Acetyla in inopyro muc ic acid. 



Marquis. BL, 31, (1282). 



CYCLOID CH^Os 



3-Dihydrofurfuranea,a'-dicarboxylic 

 acid C3H40iC02H)2 



Hill & Russe. Optically active iso- 

 mers. Am., 33, (372). 



CYCLOIDS CoHbOs 



Lactone of triacetic acid 



.0 . CO. 



*CH.CO' 



>CH.2 



Tamburello. Sul lattone dell'acido 

 triacetico LRiassunto]. Roma, Rend. 

 Soc. cliim., 3, 1905, (23). v. D 6, p. 

 729. 



Fleischmann. Condensation of pro- 

 ducts of triacetic lactone with aceto- 

 acetic ester and /8-aminocrotonic ester. 

 J.C., 91, (250). 



CYCLOID CsHioOj 



Oxydimethylbutyrolactone 

 HO.CH.CMe. 



CH2.O >^^ 

 Courtot. BL, 35, (657). 



CYCLOIDS CtH.jOs 



7-0xy-aa/3-trimethylbutyrolactone 



H0.CH<J;^^^-^^^>CMe2 

 and its ethyl ether, acetyl and phenyl- 



CARRAMYL DERIVATIVES. 



Blaise et Courtot. BL, 35, (989). 



Oxydimethylvalerolactone 



CH2.CH(0H) 

 CHj. . CO 

 Courtot. BL, 35. (657). 



CYCLOID CHfiOs 



Oxymethylenephthalide 



^ Gn4<QQ>0 

 and tiie uromo derivative, oxime and 



I'HEKYLnYDRAZONE. 



Gabriel, S. B.,40, (71). 



CYCLOID CHnOi 



Glycidic acid 

 p T, ^CMe.COjII 



and its ethyl esteu. 

 Darzens, G. C.IL, 144, \ 1 1 23). 



