Cycloids containing oxygen. 



763 



1911 



CYCLOID CnHiu04 



7-Oxy-phenylethylmalonic acid 



A'Hj.C'H.CU,!! 



and the corresponding NITRII.E. 

 Bougault. f.U., 146, ('J37j. 



CYCLOID Ci2Hi404 



a-Ethylmeconine 



(MeOJ2C5H3<[jJ;[j.^>U 

 Bkomo, nituo and amino herivatiaes. 

 Mermod u Simonis. 1!., 41, (982). 



CYCLOID CJ5H13O4 



"2' : 4'-Dioxy---phenylbenzopyranol 



,,„ O C.CoHatUH)^ 



" '^CH(UH).CH 

 AuliyJrohydrocldoride of the 2' : i'- 

 dmethyl ether, and its platinicldoride 

 and fei-richloride. 



Perkin, Robinson it Turner. 60471. . 

 CYCLOIDS Ci,Hi204 



1, 2'-Dioxy-3-methylflavone 



/O— 0— CeH, OH 

 C6H2Me(OH)<; II 



^CO.CH 

 And the '2'-met hoxijderivat 1 ve . 



1, 3'-Dioxy-3-methylflavone 

 1, -I'-Dioxy-S-metliylflavone 

 Tambor. B., 41, (787j. 



3, 3'-Dioxy-i-methylflavone 

 Tambor. B., 41, (793). 



4' : 5'-Dioxy-2 : 3-indenobenzo- 

 pyranol (i : -ij 



p „ ^*J tJ.CeH^fOII)^ 



' '^CH(0H).(J.(Jll2 

 Anlnjdruhydiochloride of the dimethyl 



ETHER 



,0C1 C.CeH^fOMe), 

 ^CH.Vj.CHj 

 and the platinlchlovlde and anhydro- 

 ferricldor'ide. 

 The anhydro J erv'i cJtl ur'ide of the 



METIIVLENE ETHER. 



Perkin, Robinson & Turner. 60471. 



C6H4<, 



CYCLOID C„Hi404 



a-Phenylmeconine 



(MeO).,Ceti2<oHPh>^ 

 Mermod u. Simonis. B., 4l, (982). 



CYCLOIDS Ci9H,204 



3'-Oxy-a-naphtlioflavanole 



And the methoxydkrivaiivi:. 



4'-Oxy-a-naplithoflavanole 



.U-C.C6H4(OH) 



t'loH6<' II 



\CU.C.OH 

 And the metho-wderivative. 



Kostanecki. B., 41, (783). 

 CYCLOID C30H23O4 



2-0xy-3 : 'j-dimethoxytetraphenyl- 

 tetrahydrofuran 



PhCH Oi^h.OMe 



PhC(OMe).().CPh.{)?I 

 Irvine & McNicoll. .37721. 



CYCLOIDS WITH FIVE lOXYGEX 



ATOMS. 



CYCLOID C6H4O5 



Comenic acid 



Peratoner e Palazzo. G., 36, i, (7). 

 CYCLOID C:,H,o06 



Anhydrobrazilic acid 

 /O— CH 

 OMe.CeHj/ II 



^OO.C.Cns.COjH 

 Perkin & Robinson. 60470. Synthesis. 



CYCLOID CsHisOs 



Dioxysantonin. 



Angeli e Marino. .1383 1 . 



CYCLOIDS CicHioOs 



1,3', 4'-Trioxy-3-methylflavone 



/O— C'.e'ell ((JH)2 

 CeH2Me(0H)<' || 



^CO.OH 



And tlie 3', d'-Di.METiioxYuiaavATivE. 



3, 3', 4'-Trioxy i-methylflavone 

 Tambor. I'-., 41, (79.3j. 



