1910 



882 Cycloids containing oxygen. 



^>C0 



CYCLOID C1.H14O4 



Trioxyphenylmethylbenzopyran 



Diethyl ether 



H0.CeM3<— f^^— >C.C6H3(OEt), 



aud the acetyl dcr'ivaihe of the dictlujl 

 cllier. 



Bulow, C. unci Sautermeister, C. 

 Berlin, Ber. D. ckem. Ges., 37, I'Mi, 

 (35d-3G8). 



a-0xy-/3-phenyl-70xyphenyl- 

 butyrolactone 



MetJiyl ether 

 CHPh . CH(OHX 

 CH(C6H,.0Me).0 

 and its acetyl compounds. 



Erleameyer, E. jmi. uud Lattermann, 

 A. Lieljigs Ann. Chem., Leipzig, 333, 

 1904, (268-276). 



CYCLOID C,7H,204 



Cinnamylidene-tlioxycoumaranone 



also -i'-nitro and i'-dimetliylumiuo 

 cinnaviyl'tdene-dioxycoumaranone. 



Feuerstein, W. und Brass, K. Berlin, 

 Ber. D. cliem. Ges., 37, 1901, (SL'1-827). 



CYCLOID Ci8H,204 



Phthalylbenzoylacetone 



Tlie dia-plienyl, dis-nilroplicinil and 



disbromopheuijlhydrazo)ie^. 



Also the dis-semiaarhazone and oxime. 



Biilow, C. und Koch, B. Berlin, Ber. 

 D. chem. Ges., 37, 1901, (577-588). 



CYCLOID CsHmO* 



Phthalidylbenzoylacetone. 



Billow, (". und Kocb, 15. licriin, l!er. 

 D. chem. Ges., 37, 1904, (577-588j. 



CYCLOID Cic,Hi404 



Diphenylheptenedilactone 



iso-DirnENYi.HErTENEOii.ACTONK ; their 

 salt-'i and hromo derivatives, 



Fittig, R. Liebigs Ann. Chem., Leip- 

 zig, 331, 1904, (151-196). 



CYCLOID C,9Hi604 



Diphenylheptodilactone 



and its i^alts and hromo der'ivatice». 



Fittig, 1». Liebigs Ann. Chem., Leip- 

 zig, 331, 1904, (151-196). 



CYCLOID C2nH,404 



Phenolphthalein 



Green, A G. and Perkin, A. G. The 



constitution of plienolj)lithalein, [and its 

 salts]. London, J. Chem. Soc, 85, 1904, 

 (398-403) ; [al)stract.J London, Proc. 

 Chem. Soc, 20, 1904, (50). 



CYCLOID C,oHifc04 



Diphenyloctenedilactone 

 CH2.CIJ2 ^,^, ^ cph-o 

 CO_0>^^'^-^<CH,.CO 



Fittig, R. und Stadlmayr, F. Liebigs 

 Ann. Chem., Leipzig, 334, 1904, (128- 

 143). 



CYCLOID C20H20O4 



Diphenyloctolactonic acid 



>C11 . Cill'h . CIL . Cll2.CU,lI 



. Clll'li 



CO-CH5, 



Fittig, R. und Hadorfi', K. Liebigs 

 Ann. Chem., Leip;^ig, 334, 1904, (117- 

 128). 



CYCLOIDS wrrn five oxygen 



ATOMS. 

 CYCLOID CoH^Os 



Aconitic anliydride 

 C( : CH . CO2H) . CO 



CH, 



-CO 



>0 



AnscMtz, R. und Bertram, W. Ber- 

 lin, Ber. 1). chem. Ges., 37, 1904, (3967- 

 3970). 



CYCLOID CSH12O5 



Lactonic acid 



CH2. .CO 



^^^^^<CH(0H).CH.C0,H 



Silberstein, A. Wien, Monllfte 

 Ciiem., 25, 1904,(12-20). 



