Cycloids containing oxygen. 879 



3-Oxyflavanone 



and its MoiioinelliijI cUicr and acctiil 

 derivative . 



Kostanecki, St. von uud Stoppani, 

 M. L. Berlin, Ber. D. chem. Ges., 37, 

 1901, (1 180-11 82). 



Oxydiniethylfluorone 



C,H,<^|5^>Ce^e,0^0n) ['J : 1 : 3 : 2 : l] 



and its Metliyl ether 



Also the Leuco compolnd 



C6H4<^0^>C6Me2(OH)2 



and hromo derivatives. 



Liebschutz, J. nnd Wenzel, F. Wien, 

 :\IonlIfte. Chem., 25, 1904, (319-331). 



CYCLOIDS CigHcOj 



a-0xo-;37-diplienylbutyrolactone 



and its uccln'e. 



Erlenmeyer, E. jun. und Arbenz, E. 

 Eiebicrs Ann. Chem., Leipzig, 333, 1904, 

 (228-237). 



o-O.KO-j3-N"ITP.OPHENTrL-7-rHEKYLBUTRVO- 

 LACTOXE 



XOj.C^H^.CH.CO ^,,) 

 CeH^.CH.O 

 and the henzijl and acetyl compounds. 



Erlenmeyer, E. jtm. und Arbenz, E. 

 LiebigsAnn. Chem., I.,oipzig, 333, 1904, 

 (228-237;. 



2-Ph8nyl- 1-anh /drometliyldioxy- 

 benzopyranole 



The 2, 4'- iiiETHiAV-1'HENYL derivatives 



of the 5, 7-DioxY, 7, 8-uinxY and 



6, 7-DiuXY compounds. 



Billow, C. und Sauermeister, C. 

 Berlin, Ber. D. chem. Ges., 37, 1901, 

 (4715-4723). 



CYCLOID Cr.EiOi 



a-0.iy-3-phenyl-7-benzylbutyro- 

 lactone 



2 isuuiL'iidi^o 

 CH(C,H,).0 ^^^(3 



CHrcjl5).CH(0H) 

 Erlenmeyer, E. jun. und Reis, F. 

 Lieljigs Ann. Chem., Liepzig, 333, 1904, 

 27G-2831. 



1910 



CYCLOID Ci HuOi 



o 0x0 .3-phenyl-7-cinnamylbut>'ro- 

 lactone 

 cex'H:cnPh).o 

 CH(C6H5) — co^ 



Erlenmeyer, E. jiin. und Braun, A. 

 Liehirjs Ann. Chem., Liepzig, 333, 1904, 

 (254-268). 



CYCLOID Ci,H,„03 



a-0xo-3-p-iso"iropylphenyl-7-plienyl- 

 butyrolactone 



CH(C6H,.C3Hj).0 



CH(C6H5) C0>*^^ 



and the acetyl and benzyl compounds. 



Two isomerides. 



Erlenmeyer, E., jun. und Eehren, C. 

 Liehios Ann. Chem., Leipzig, 333, 1904, 



(2.38-251). 



CYCLOID CigHjjOs 



a-0xy-3-phenyl-7-isopropylphenyl 

 butyrolactone 

 CHPh.CH(OH) ^pQ 

 CII(CeH4.C3H,).0 



Erlenmeyer, E. jun. und Kehren, C. 

 Liebigs Ann. Chem., Liepzig, 333, 1904, 

 (238-254). 



CYCLOID C hHiOj 



Naphthobenzoylcoumarin. 



Knoevenagel, E. and Schrbter, F. 

 Berlin, Ber. D. chem. (.ies., 37, 1901, 

 (4484-4191). 



CYCLOID C 7H, 



Dioxyphenyldinaphthaxanthene 



IfoSOM ETHYL ETllElt 



0<f^'»{!^>CH.C6H3(OMe)(OH) [1:3:4] 

 (l)inaphthopyryl-giiaiacol). 



Foase, II. Paris, C.-R: Acad, sci., 137, 

 1903, (858-860). 



