1910 



876 



Cycloids containing oxygen. 



0< 



CH(CMe3).CH2 

 - CPh, 



CO- 



Japp, F. E. and Maitland, W. [Lac- 

 tone of aa-diphenyl-7-ie>'f.-butyl-7-liy- 

 droxvljutyric acid.] London, J. Cliem. 

 Soc.;85, loot, (1496-1512); [aljstract] 

 London, Proc. Chem. Soc, 20, 1904, 

 (205-206). 



CYCLOID C27H18O2 



p-Oxyphenyldinaphthaxanthene 



0<^"}5^>CH.CeH,.0H 



(pinaphthopyryl-phenol). 



Fosse, R. Paris, C.-E. Acad, sci., 137, 

 1903, (858-860). 



CYCLOID C21H12O2 



Dinaphthaxanthones 



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

 138, 1904, (1051-1054). 



CYCLOID C21H24O2 



Dimethyl- diisopropyl-xanthone 



C3H,.C6lI,Me<*^Q'>C6H2Me.C3lT, 



Fosse, R. et Eobyn, A. Paris, Bui. 

 soc. chim., (ser. 3), 31, 1904, (257-264). 



CYCLOID C22H14O2 



Phenyldiphenylenefurfurane 



AciCTOXY 1)ERIV.\TIVE 



C6H4.C-C.()Ac 



C6ll4.C.().CPh 



Japp, F. I?, and Wood, J. [3-Aeetoxy- 

 2-phenyl-4 : 5-diphenvlenefurfuran ] 

 London, Proc. Cliem. Soc, 20, 1904, 

 (221). 



CYCLOID CzHisO: 



2-0xy-4,5-dimethyl-tripheny]acetic 

 acid lactone 



CPl.^.CeH^Me^ 

 CO— 6 



also 2-OxY-3, 5-DIME'rayLTniPnENYLACETIO 

 ACID LACTOSE. 



Geipert, R. Berlin, Ber. D. clieni 

 Ges., 37, 1904, (664-673). 



CYCLOID C,,EuO, 



1 - Oxy-2-naphthyl-diphenylacetic- 

 acid lactone 



and the hromo and ?i?f7'o derivatives, also 



2-OXV-l-NAI'HTinL-DlPnENYI.ACETIC ACID 

 LACTONE. 



Geipert, R. Berlin, Ber. D. chem. 

 Ges., 37, 1904, (664-673). 



CYCLOID CzsHzoOa 



Oxytolyldinaphthaxanthenes 

 0<J:i"iJ^>CH.C6H3Me.OH 



[1:3:4], [1:2:4] and [1:3:6] 



(Cresol-dinaphtliopijrane). 



Fosse, R. Paris, C.-R. Acad, sci., 138, 

 1904, (282-284). 



CYCLOID C31H21O2 



Oxy-;3.naphthylnaphthaxanthene 



0<J:;'»J{^>Cll.C,„He.OH [1 : 2] 



{T)iuaiihthopijvyl-fi-napht]ioI). 



Fosse, R. Paris, C.-R. Acad, sci., 137, 

 1903, (858-860). 



CYCLOIDS WITH TlIllEE OXYGEN 

 ATOMS. 



CYCLOID C5H4O3 



Pyromucic acid 



NlTKOl'YROMUnc ACID 



CH : C(C02H) 



C(N02):CH ^ 

 Methyl ester, chloride, amide, anilide, 

 and 2'-toluide. 



Marquis, R. Paris, C.R. Acad, sci., 

 137, 1903, (520-521). 



AMINOrYRoMUCIC ACID 

 NII2.C4OH2.CO2H 



Ethyl ester, acetyl derivative, and ethyl 

 ester of the benzoyl derivative. 



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



136, 1903, (14.54-1456). 



Isopyromucic acid 



Methyl, ethyl and benzyl esters. 

 Chavanne , G . Par i s, C -.-R . Aca d . sc i . ,, 



137, 1903, (992-993). 



