Cycloids containing oxygen. 



rG4 



1911 



OH.C6H3<, 



7:4': 5'-Trioxy-- : 3-indenobenzo- 

 pyranol d-.i) 



C.C6H,(OH)2 



-CH(0H).C.CH2 



Avhiidyoliijdroi-ldovide, i:ilathiicMonde 

 and anh]idrofernchlor'ide of the 



4' : 5'-DIMETHYI. ETHER. 



AvJujdroliydrocldonde, platinichlori de , 

 ■anli.ijdrojerr'tcldor'ide and anhydrocad- 

 m'niin bromide of the 7:4'; 5'-Ti!iMETnyL 



ETHER. 



Parkin, RoMnson & Turner. 60471. 

 CYCLOID C^eHiiOs 



Anhydrophthalylbisindandione 



C6H4<^J]>C : C<':\^_^>C : 



Marcliese. G., 37, ii, (303). 



■CYCLOID!^ WITH SIX OXYGEN 



ATOMS. 



CYCLOID C H4O, 



Oxycomenic acid 



;aud its METUYL ESTER and DIMETHYL ETHER. 



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

 CYCLOID CsHbOe 



t)-Methyl-2-pyrone-3 : 5-dicarboxylic 



■A riu^<-^(<^C)2H)— <^^ -^n 

 acidCH<p^CQ^jjj.(-,^^^>0 



Diethyl ester. 

 Simonsen. G1US8. 



CYCLOID CnHieOe 



5-)/(-Meconyl-r)-methoxyphenol 



o.co 



Perkin & Eobinson. 00470. 



CYCLOIDS WITH SEVEX OXYGEN 



ATOMS. 



CYCLOID CBH4O7 ■ 



Diketotetraliydiofurfurane dicarb- 

 . oxylic acid o<t^H(CO,H).co 



Ethvl ester. 

 Johnson & Jolms. 57868. 



CYCLOID WITH NINE OXYGEN 



ATOMS. 



CYCLOID ChHsOs 



Pentaoxybiplienylmethyloloid 



carboxylic acid. 

 Nirenstein. B., 41, (3015). 



1912 CYCLOIDS WITH TW(.» 

 ATOMS OF OXYGEN IN TH]-: 

 KING. 



GENERAL. 



Dials u Pillow. 55037. Bis-beii- 

 zoylcyanid. 



Semmler u. Bartalt. 61899. (Houio- 

 piperoual und seine Derivate.) 



SPECIAL. 



CYCLOIDS WITH TWO OYYGEX 



ATOMS. 



CYCLOID C4H8O2 



Dimethylene oxide 



C^'^>0:O<^«^ 

 CH2 VE2 



Paterno e Spallino. 60382. Ricerclie 

 sulla costituzione del diossietilene. 



CYCLOID CH.Ol. 



Piperonylmethane. 



PirERONYLI)[NlTR().M ethane. 



{SO,),CR.C,U,<'^>CU^ 

 Ponzio 60088. 



CYCLOID CjoHicOs 



Pseudosafrol 



[3:4:1] CH2<J;J>C6H3.C.\Ie : CIl, 

 Belial et Tiflenaau. Bl.,3, 735 j. 

 CYCLOID CuHizO: 



Isopropylpyrocatechol. 

 Methylene ether 



CIL<^>CeIl3.CHMe, 

 B^hal et Tiffeneau. BL, 3, (736). 



CYCLOID C16H10O2N2 



Bisbenzoylcyanide 



^^CPh(CNj^^ 

 Dials u. Pillow. B., 41, (1893). 



