Cycloids containing oxygen. 



CYCLOID CisHhO 



p-Benzylcoumarane 



CH2P]i.CeH3<J^>CH2 

 Marschalk, C. B., 42, (4486). 

 CYCLOID CmHmO 



Dinaplithapyrone 

 Fosse. C.R., 148, (1607). 



DiNAPHTHAPYRYL BROMIDE 



OLCioHel^CHBr 



and the corresponding chloride and 



their derivatives. Also the sulphate 



and NiTROPRUssi.vrE. 



BL, 5, (787, 790). 



DiNAPHTHAPYRYL CHLORIDE. 



Salt (0[C,oH6],CH)2PtCl6 

 Fosse. BL, 5, (799). 



CYCLOID C2cH,80 



1 : l-DiphenyI-3-phenylenephthalan 



SMtoata. 71079. 



CYCLOID CjrHjoO 



1,2-Diphenyl-l -xanthylmethane 



0<^>[|^>CPli.CH2Ph 



Gomberg n. Cone. A., 370, (159). 



CYCLOIDS WITH TWO OXYGEN 

 ATOMS. 



CYCLOID C4H3O2 



Oxytetrahydrofurfurane 



,CR,.Cli, 



~CH2.CH.OH 

 and its phemylcauuamyl derivative. 

 Pariselle. C.R., 149, (296). 



CYCLOID C7H,202 

 Heptolactone. 



Aminoheptolactone 

 CH3 .C.Me, ^^ 

 NHo.CMe.CO 

 and its compound with pJioujltliiocarb- 

 imide. 



KoHn. M., 29, (509). 



691 1911 



-VIethylaminoiieptolactone 



and its conijjonnd with phenijltliloearh- 



hnide. 



Dimethylaminoiieptolactone. 



Kohn. il., 29, (514). 



CYCLOID C H6O2 



5-Oxycoumarone 



5-Methyl and ethyl derivatives. 



Dumont, H. u. Kostanecki, St. v. B., 



42, (911). 



LACTONE CsHnOz 



C2H5 . CH.CHj ^ 

 CH3.CH: C .O.CO 

 Bouveault et Locquin. Bl., 5, (1142). 



CYCLOID C8H14O2 



7 n-Butylbutyrolactone 



0<^ 



C4H,.CH<^'^^^-9^'f2 

 — CO 



Blaise et Koehler. C.R., 148, (1773). 

 CYCLOID CgHuOz 



Dimethylnorcampholide. 



Komppa, G. n. Hintikka, S. v. [Syn- 

 thesis.] B., 42, (898). 



CYCLOIDS CitiHu,02 



5-0xy-2,3-dimethylcoumarone 



5-METH0XYDniETHYLC0UMAE0.\E. 



Kostanecki, St. v. n. Tambor, J. B., 



42, (904). 



7-Phenylbutyrolactone. 



a-CYASO derivative. 

 CHPh.CHj.CH.CN 



-CO 



Haworth. 670 



CYCLOIDS CoHieOo 



3.5-DimethylcycIoheptane-7- 

 carbolactone .Me2.C,Hio<. 



Buchner, E. u. Delbriick, K. A., 358, 



Lactone ^^H, .c:h.cH2^ 



CHEt : C.O.CO 

 Bouveault et Locquin. Bl., 5, (1142). 



