Cycloids containing oxygen. 



762 



1911 



CYCLOIDS CkHisOs 



--Methylflavonole 



.0 CPh 



C'oH.Me 



/ 



^co— coil 



Auwers n. Muiler. B., 41, (-1233). 



3 Oxy-1-methylflavone 



O— C.Pli 

 (:',H,Me(OH)< II 



CO.CH 



Tambor. B., 41, (793). 

 -Oxy-2 : 3-indenobenzopyranol (l : 4) 



and its anhydrohydrocJilor'ide 



platiniehloride and aiirichloride. The 



a nil ijdro] err I chloride and its methyl 

 ether. 



Perkin, Robinson & Turner. G0471. 

 CYCLOID C,,Hh03 



2, 7-Dioxyphenylxanthene 



CoH3(OH)<g^^'^>C3H3(OH) 



and the acetate, henzoate, dimethyl, 

 diethyl and d'lhenzyl ethers. 



Meyer u. Witte. W., 41, (2-153). 

 CYCLOID CriHnOs 



2-Benzoylxanthone 



CeHs.C().CeH3<^!;,>C6H, 

 Heller u. Kostanecki. B., 41, 1 1324). 



CYCLOIDS C20H13O3CI 



Fluorane oxonium chloride 



Methyl and ethyl ester. 

 Green u. King. B., 41, (3434). 



CYCLOID CiuHa^O; 



2, o-Furylenebisdiphenylcarbinol 



C4H20(CPh2.0II), 



Hale, McNally & Pater. .")7071. .Aid., 

 35, 1,08). 



CYCLOID C34H3j03 



2.5-Furylene-bisdibenzyl-carbinol 



Hale, McNally & Pater. 57074. Am., 

 35, (6,SJ. 



CYCLOIDS WITH FOUR OXYGEN 

 ATOMS. 



CYCLOID C7H10O4 



7 Ethylbutyrolactone y-carboxylic 

 acid CH2<[^i[J^(j>CEtC02H 

 Maire. Bl., 3, (286). 



CYCLOID C3H.O4 



Deliydracetic acid 



CII2<q[]-|^jj>C.CH2.CO.CH, 



Compound with p-toluidine, also the 

 formhydrazlne and aemicarbazone . 



BiUow. B., 41, (41G1). 



CYCLOID C3H6O4 



Phtlialide carboxylic acid 



06H4<cH^C02H)>^ 

 Creeth & Thorpe. 55301. 



CYCLOID C,Hki04 



Pyromucylacetic acid 



(J4UH3.CU.Ci:i2.C02H 

 IIXIME and SEM1CARB.\Z0NE of tllC ESTER. 



Torrey & Zanetti. G2tiC3. Ethyl 

 p V romn cy laceta t e . 



CYCLOID C,oH604 



Isocoumarin 4 carboxylic acid 



cu 



and the methyi, and ethyl esters. 

 Dieckmann u. Meiser. B., 41, (3253j. 



CYCLOIDS CioH,04 



5-Oxy-2-metliylcoumarilic acid 



5-METiiYL DERiv.iTiVE aud the ethyl ester. 

 Kostanecki u. Lampe. B., 41, (1330). 



Furoin C4H30.CU.CH(OH).C4H30 



Irvine & McNicoU. 57722. [Action 

 (if methyl alcolio! and liydrochloric acid 

 on i'uroin ; also its nietliylatiou by tlie 

 silver oxide method.] « 



