Cycloids containing oxygen. 



CYCLOID CiHiOi 



Diphenospii'opyrane 



^ „ ^CH : CIL , L'H : CH^ , „ 

 <-'6n4<Q > L < Q>1. fiii* 



Decker u. Felser. B., 41, (2997). 

 CYCLOID Ci Hi.O:. 



Plienylfluorone 



and Aminoi'iienylfluouone. 

 Kehrroann u. Dengler. B., 41, (3440). 



CYCLOID C22HHO2 



Dinaphthylene ethylene dioxide 



CioHs.CH.O 



Betti e Mundici. G., 36, ii, (635). 



CYCLOIDS WITH THREE OXYGEN 



ATOMS. 



CYCLOID C,H O3 



Homopiperonal 

 /O.C = CH— C.CH2.CHO 

 CH/ i II 



\O.C = CH— CH 



and the Semicauraizne, oxime. 

 Semmler u. Bartelt. B., 41, (2751). 



CYCLOID CioHioOs 



Piperonylacetone 



(•II2 : U, : L'eHs.L'Hj.rU.CHs 

 Belial et Tiffeneau. Bl., 3, (730). 



CYCLOID C19H12O3 



Oxyphenylfluorone 



<65 1915 



» 



CYCLOIDS WITH FOUR OXYGEX 



ATOMS. 



CYCLOID C,5H.04 



Brasanequinone 



C6tl4< ■• >Csii^ 



U.CO 



Trinitro-teimethoxy and dinitrohethoxt 



DERIVATIVES. 



Eostanecki u. Lampe. B., 41, (280U). 

 CYCLOID CisHh04 



Tetraliydrodicoumarin 

 X'Hj.CH— CH.CH 



Kehrmann u. Dengler. B., 41, (3440). 

 CYCLOID CjiHjOs 



i-[2,5-Dimethylhydryocoumarilyl]- 

 -,0-diinethylliydrocoumarone 



C0r-CH<l';"-''^>C,H3Me]^ 



C6H4^ 



and the mxime and iiydrazose. 

 Pries n. Klostermann. A., 362, (J). 



— CO CO— 0/ 



a and fl-derivatives. 

 Fries u. Fickewirth. A., 362, (30). 



CYCLOID C22H20O4 



3-[2,5-Dimethylhydroc©umaiilyi:- 

 4,7-dinietliylcoumarin 



CeH3Me<J^^^>CH.C0. 



C<co^"^>C6H3Me 

 Fries u. Klostermann. A., 362, (Ij. 



CYCLOID C22H2:04 



Tetrahydro-di-L4,(J-dimethyl- 

 coumaiinj 



r /ClJMe.CH— -, 

 CeHs^K ; 1 



^ \0 CO -J 2 



a and y3-deiivatives. 

 Fries u. Fickewirth. A., 362, [ol>). 



1915 CYCLOID WITH FIVE 

 ATOMS OF OXYGEN IX THIi 



inxG. 



CYCLOID C2oH,608 



2:3: 5-Trioxytetra-a-furyltetra- 

 hydrofuran 



C4H3O.CH C^OH).C4H30 



C^HsO.CXOH^O.CiUHj.C^HjO 



3 : 5-DlMETHYL ETHER. 



Irvine & McNicoll. 57722. 



