Cycloids containing oxygen. 



Acetylmethylbenzylideneketo- 

 dihydrofurfurane 



ClIPli :C.().('Me 



CO-iJAc 



Ruhemann, S. [The action of plienyl- 

 hvdraziue on it]. London, J. Clieni. 

 Soc, 89, 1900, [GS2-GS1). 



CYCLOID CisHi.Oi 



Xanthylacetic acid 

 0<[^!sJ}^>CiI.CH2.C02H 



Fosse, R. Paris, C.-TL Acad, sci., 

 143, 1900, (59-61). 



CYCLOID CeHnOs 



1-Oxy- 3-methylflavone. 

 Ludwinowsky, S. und Tambor, J. 

 Berlin, Ber. L>. chem. Ges., 39, 1906, 

 (4037-40ilj. 



CYCLOID CaHuOs 



5,5-Diplienylfulgide 



a O, and a,p-JIET[IO\YrUENYL DERIVATIVES 



Stobbe, H. Berlin, Ber. D. chem. 

 Gjs.,39, 1906, (761-769). 



CYCLOID CiaHuOi 



7-Plienyl-7-oxyhydrindone- 

 propionic acid 



p jr ^Cl'h^^ U 



^6tL4^CO >CH.Cl-LMe.CO 



Stobbe, H. und GollUcke, F. t.c. 

 (1066-1069). 



CYCLOID CHi.O^ 



Xanthylacetylacetone 

 0<g^g>CH.CHAc2 



Fosse, R. et Robyn, A. Paris, C.-R. 

 Acad, sci., 143, 1906, (239-212). 



CYCLOID CisHioOs 



Xanthylisovaleric acid 



Fosse, R. Paris, C.-R. Acad, sci., 

 143, 1906, (59-61). 



CYCLOID C,9H,203 



a-Naplitlioflavonole 



and the acetate. 



Woker, G. Berlin, Ber. D. chem. Ges., 

 39. 1906, (1619-1653). 



731 



1911 



CYCLOID CoHnOs 



Coeroxonole 



and tlie ethvl ester. 

 Also the C0ER0X0N1U.M salts. 

 Decker, H. Liebio-s Ann. Chem. 

 Leipzig, 348, 1906, (210-250). 



CYCLOID C23H,603 



Dinaphthapyrylacetic acid 



0<p"JK>CH.CIl2.C0,H 



Fosse, R. Paris, C.-R. Acad. sci. 

 143, 1906, (59-61). 



CYCLOID C.jH.cO^ 



Xanthylbenzoylacetone 



0<p'r>CH.CHAcBz 

 Fosse, R. et Robyn, A. t.c. (239-212). 

 CYCLOID C23H20O3 



5-0xy-2-benzoyI- 2,3-diphenyl- 

 tetrahydrofurfurane 



o< 



CH(OH).CH, 

 CPhBz .CHPh 



Garner, J. B. Amer. Chem. J., Balti- 

 more, Md., 32, 1904, (583-006). 



CYCLOID C24HHO3 



^-Benzocoercxonole. 



Decker, H. Liebigs Ann. Chem 

 Leipzig, 348, 1906, (210-250). 



CYCLOID C24H,s03 



Dinaphtliapyrylpropionic acid 



Fosse, R. Paris, C.-R. Acad, sci., 

 143, 1906, (59-01). 



CYCLOID C36H20O3 



Dinaphthapyryl-a-isobutyric acid 



0<[;>[J«>CH.Cile2.C02H 

 Fosse, R. I.e. 



CYCLOID C26H2o03 



Dinaplitliapyrylacetone 

 0<p"JJ«>CH.CHAc2 

 Fosse, R. et Robyn, A. f.c. (239-242)- 

 CYCLOID C.fiHssOj 



Dinaplitliapyrylisovaleric acid 



0<^'jjJJ^>CH.C4H8.C02H 

 Fosse, R. t.c. (59-01). 



