Cycloids containing oxygen. 



r2[) 



1911 



CYCLOIDS C24H14O2 



Acetyl a-and )3 benzocoeroxcnol- 



Laube, Ed. Berlin, Ber. D. chem. 

 Ges., 39, 1906, (2245-2249). 



CYCLOIDS C24H,g02 



o-aiul /3-Benzocoeroxonium 

 compounds 

 Ethyl ether C26H13O3 

 Laube, Ed. I.e. 



CYCLOID C2LH2UO2 



Triphenyloxydiliydrobenzo- 

 furfurane. 



DiMETHYL-p- AMINO DERIVATIVE 



C6H,<^, 



CPhCCeH^NMe^) 



>0 



CPh(OH)- 

 and its methyl and ethyl ethers. 



Perard, J. Paris, C.-R. Acad, sci., 

 143, 1900, (237-239). 



CYCLOIDS WITH THREE OXYGEN 

 ATOMS. 



CYCLOIDS CHoOa 



Maltol 



^Q C(OH):CJre Q 



and its methyl ether. 



Peratoner, A. e Tamburello, A. Sulla 

 costitnzione del nialtolo. Roma, Reud. 

 Soc. chim., 2, 1904, (8-10). 



Methylfurfurane carboxylic acid 



,CiIe : C.CO2H 

 ^CH=CH 

 Ethyl ester. 



Plancher, G. e Albini, S. Sintesi di 

 corpi furanici dalla cloroacetaldeide. 

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

 i, 1904, (39-43). 



Triacetic lactone 



PhENYLHYDRAZONE C12H10O3N2 



and the derivative C6H40(N2HPh)3 



Also the NITRO COMPOUND 



CeH5O3.ON.C0H5O3.NO2 



Tamburello, A. Sul lattone deH'acido 

 triacetico. Palermo, 1904, (12). 



0< 



CYCLOID CeHioOa 



Trimethylglycidic acid 



,C.Me.CO,H 



CMe2< 







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

 141, 190.5, (766-7CS). 



CYCLOIDS C7H.O3 



Methylethylmaleic anhydride 



EtC.CO^Q 



MeC.C!0 



Kuster, W. Liebigs Aim. Chem., 

 Leipzig, 345, 1906, (1-59). 



a,7-Diniethylitaconic anhydride 



CHMe:C.C0 ^q 



MeCH.CO 



Fichter, Fr. und ScWaepfer, C Berlin, 

 Ber. D. chem. Ges., 39, 190C, (1535- 

 1536). 



a-Ethylitaconic anhydride 

 Et.CII.CO. 

 CH2 : C.CO 

 Fichter, Fr. uud Schlaepfer, C. I.e. 



'>0 



CYCLOID C7H10O3 



Diethylmalonic anhydride 



[Etx'4;o>o]^ 



Einbom, A. und Diesbacb, H. von. t.c. 

 (1222-1223). 



CYCLOIDS C7Hi203 



Trimethyloxybutyrolactone 



CH2.CMe(()H).CMe2 



6 CO 



Cotxrtot, A. Paris, Bui. soc. cliim., 

 (ser. 3), 35, 1906, (298-305). 



Dimethylethyl-glycidic acid 



CMeEt<^'^^^^^-^^^H 







Ethyl ester. 



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

 141, 1905, (766-768). 



CYCLOID CsHsOs 



5,5-Dunethylfulgide 



a,o- and c,p-METH()XY derivative. 



Stobbe, H. Berlin, Ber. D. chem. 

 Ges., 39, 1906, (761-769). 



