1910 



732 



1910 



LACTONE CoHieOi 



from Pulegeuic acid. 

 Wallach, 0. Liebigs Ann. Clietti., 

 Leipzig, 327, 1903, (125-157). 



CYCLOID CzHioOz 



4-Oxynaphthyl alcohol ■J-methylene 

 ether 



Tlie l-NITRO DERIVATIVE 



O GHz 



and 1-NITRO-4-OXYNAPHTHALENE-3- 

 CAUBOXYL METHYLENE ETHERESTER 



Borsche, W. mid Berkbout, A. D. 

 Liebigs Ann. Cliem., Leipzig, 330, 1903. 

 (82-107). 



CYCLOID C12H12O, 



Anhydro-2, 3, l-trimethyl-7-oxy-l,4- 

 benzopyranol 



H0.CeH3<^ .^^-^ 



CCCHj) . CMe 

 also its compounds with acids. 

 Biilow, Carl. Berlin, Ber. D. cliem. 

 Ges., 36, 1903, (190-194). 



CYCLOID C13H8O2 



Naphthacoumarin 



8-NaPHTLLVC0U.\IARIN a-CUiROXYLIC ACID 



Ethyl ester CVoHcK" 9*^ and 



CH : C . COjEt 



a-NAI'HTHAC0UMARIN-/8-ETinLCARB0XYL.\TE 



C(C02Et):CH 

 Bartsch, Kurt. Berlin, Ber. D. Chem. 

 Ges., 36, 1903, (1966-1976). 



CYCLOIDS C14H10O2 



a-Methyl-/3-naphthacoumarin 



CH : CMe 



also a-ETHYL-)8-NArHTHAC0DMARIN 

 and a-PllENYL-)8-NAPHTHAC0UMARIN 



Bartscli, Kurt. Berlin, Ber. D. chem. 

 Ges., 36, 1903, (1966-1976). 



CioH6< 



iS-Methyl- a-naphthacoumarin 



,0 — CO 

 CMe : CH 

 Baxtsch, Kurt. Berlin, Ber. D. chem. 

 Ges., 36, 1903, (1966-1976). 



Acetyl-i3-naphthafurane 



CioH6<Qj|>CAc 



and its semicakbazone, I'HENYLHYDrazone 

 oxiiiE and bromo derivatives. 

 Stoermer, R. und Schaffer, il. Ber- 

 lin, Ber. 1). chem. Ges., 36, 1903, (2863- 



2872). 



CYCLOIDS C15H12O2 



a-Ethyl-;8-naphthacoumarin 



^'°''^<CH:CEt 

 Bartscli, Kurt. Berlin, Ber. D. chem. 

 Ges., 36, 1903, (19()6-1976;. 



4,5-Dimethylxanthone 



C0<CeH3Me^0 



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

 136, 1903, (1006-1009). 



CYCLOIDS CitHi402 



Methyl-ethyl a-naphthacoumarin 



,0 CO 



X'Me : CEt 

 Bartsch, Kurt. Berlin, Ber. D. 

 chem. Ges., 36, 1903, (1966-1976). 



I 



C,oH6< 



Methylbenzoylcoumarone 



Amino derivative 

 NH nH/0.C.C0.C«H5 

 ^^^•^^^^\-CMe 

 and its oxime and acetyl derivative. 



KunckeU, F. und Kesseler, W. Ber- 

 lin, Ber. D. chem. Ges., 36, 1903, (1260- 

 1262). 



CYCLOID C18H1EO2 



Acetoethyldiphenyloxidoethane 



XThAc 



\;phEt 



Yapp, Francis R. and Micliie, Arthur 

 C. [/3-Aceto-o-ethyl-a/3-diplienyloxido- 

 ethane and its semicarbazone.] London, 

 J. Chem. Soc, 83, 1903, (297). 



o< 



