Cycloids containing oxygen. 



728 



1911 



CYCLOIDS WITH TWO OXYGEN 



ATOMS. 



CYCLOIDS C;Hj02 



Dimethylpyrone- 



Meth'iodide and metluehloride ; plathii- 

 ehloride. 



Eehrmann, F. und Duttenhofer, A. 

 Berlin, Ber. D. clieni. Ges., 39, 1900, 

 (1290-1301;. 



Furfurylacetone 



.CH . O 



^CH:C.CH2.CO.CH3 



Darzens, G. Paris, C.-R. Acad, sci., 

 142, 1900, (214-215). 



CYCLOID C.HeOi 



Coumarin. 

 Morgan, G. T. and Micklethwait, F. 

 M. G. The residual altiaity of coumariu 

 as shown by the formation of oxoniuni 

 salts. [Coumarin platinicliloride, auri- 

 chloride, platini bromide, hydriodide 

 jDeriodide, and cobalticyanide. G-Con- 

 inaryltrimethylammonium platinibro- 

 mide. Acetyl-O-aniinocoumarin platini- 

 cliloride, aiirichloride and hydriodide 

 periodide. Propiouyl-6-aminocoumarin.] 

 London, J. Chem. Soc, 89, 1906, (863- 

 872j ; [abstract] London, Proc. Cheni. 

 Soc, 22, 1906, (131-132). 



CYCLOIDS CioHaOa 



Methylcoumarins 



,, ,, ,, CH : ( '11 



The four isomerides. 



Chuit, P. et Bolsing, F. Paris, Bui. 

 soc. chim., (ser. 3;, 35, 1900, (76-90). 



4-Methylcoumarin. 

 Fries, K. und Klostermana, W. Ber- 

 lin, Ber. I), chem. Gcs., 39, 1906, (871- 

 875j. 



CYCLOID C,oH,g02 



)3-Campholide ('3lli4<[il{ >0 



Haller, A. et Blanc, G. Paris, C.-R. 

 Acad, sci., 141, 1905, (097-701j. 



CYCLOID CuH, 0: 



2,1-Dimethylcoumaiin 



cH,.c.H,<^y^,,;>;;; 



Fries, K. luul Klostermann, W. Ber- 

 lin, Ber. I), cli.-m, Ges., 39, 1900, (871- 

 875). 



CYCLOID CniluOi 



1 ,2,4-Trimethylcoumarin 



,U CO 



^CMe : CMe 

 Fries, K. mid Klostermann, W. 



CH3.C6H3<, 



CYCLOID C,3Hio02 



Xanthydrol 0<!^i°JI>CH.OH 



Products C]3Hi|02N and C14H13O2N3 



formed by Inidroxylamine and semi- 



carhnzide respectively. 



Fosse, R. Paris, C.-R. Acad, sci., 

 143, 1900, (749-751). 



CYCLOID Ci3H,s02 



Pulegoneacetic anhydride. 



PDJ.EGoNI:;cYAX(.)ACr.TlCA('HiANIIYriRIDE 



'^'i3Hi7*-*2^ and the amide anhydride. 

 Vorlander, D. und Kotlmer, F. Lie- 

 bif^s Ann. Chem., Leijozig, 345, 1906, 

 (158-187J. 



CYCLOID Ci4Hi202 



p-Oxyphenylcoumarane 

 0<^;^^{|>CH.CeH,OH 



and the acetate and methyl ether. 



Werner, A. Berlin, Ber. D. chem. 

 Ges., 39, 1906,(27-36). 



CYCLOID C19H14O2 



ct-Naphthoflavanone 



and the isosriKosd ukiuvative. 

 Woker, (;. /.--. (1019-1653). 



CYCLOID C2iH,.02 



Dinaphthaxanthydrol 

 0<H"!I°>CI1.0H 



•■'lone 

 Methyl ethki;. 



Betti, II. c Mundici, ('. M 



[Alcoolati di diiiafto-xaiuidrolo]. Roma, 

 Rend. Ace. Lincei, (Ser. 5), 13, 1904, 



(242-551). 



CYCLOID C iH,,02 



7-Benzoyl-/^7 diphenylbutyro- 

 lactone 

 CIl2.C().o ^ 

 CllPh.CPliBz 



Garner, .1. B. Anier. Chem. J., Balti- 

 more, litl., 32, i:)()l, (583-(;()6). 



