Cycloids containing oxygen. 



1911 



>0 



cycLOiD CJHicOs 

 Xeronic acid 



CHsile.C.CO, 



CHjMe.C.CO' 



and the imide. 



Kiister, W. uinl Haas, K. Liebigs 

 Ann. Chem., Leipzig, 346, 19U6, (1-27). 



CYCLOID C3H12O3 



QTT ^CH2.CH2^P^CH.C02H 



■ CHs.CHj 6 



Ethyl ester 



[From cydohexanone unci cJdoracetic 

 ether. 



Darzens, CI. et Lefebure. V. Paris, 

 C.-R. Acad, sci., 142, 100(3, (714-715i. 



CYCLOID C3H14O3 



Dimethylpropylglycidic acid 



O 

 Ethyl ester. 



Darzens, (!. op. cit. 141, 1905, (7GC- 

 7G8). 



CYCLOID C,Hi403 

 ^^ CH2.CHMe^(-,^CH.C02H 



' CH2.CH2 6 



Ethyl ester [oxide of o-metlujlcydo- 

 hexylaeetlc ether']. 



Also the m- and p-isomerides. 



Darzens, G. el Lefebure, P. Paris, 

 op. cit. 142, I'JOli, :7U~710). 



CYCLOID CuiHfcOs 



1-Phenyltetronic acid 



CPli .CO 

 C(0H).CH2 

 Dimrotli, 0. und Eble, M. Berlin, 

 Ber. D. chem. Ges., 39, IDOG, (3928- 

 3929). 



CYCLOID CoHioO. 



Phenylmetliylglycidic acid 



PhCiK^.'-^^'^-^''-'^" 

 o 



Ethyl ester 



Also anisijlntethiilyUjcidic ether and 

 pijieronylmethyl'jbjcidic ether. 



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

 142, 190G, (214-215). 



>0 



CYCLOID CiHizOj 



Phenylciimetliylglycidic acid 







Ethyl esteu 



and the ester of the homologous 



DlilETHYL-p-TOLYLGLYCIDIC ACID. 



Darzens, G. op. cit. 141, 1905, (760- 



ros). 



CYCLOID CnH;o03 



Dimethylhexylglycidic acid 



Ethyl ester 



Also the ethyl esters of the corresponding 



dimethylheptylgly'oidic acid 



and of dimethylexnylglycidic acid. 



Darzens, G. I.e. 



CYCLOIDS C12H1UO3 



a-Acetyl-7-plienyl-7-oxy-A;3-butenic 

 lactone 

 AcCH.CO 

 CH : CPli' 



Borsche, W. und Fels, A. Berlin, Ber. 

 D. chem. Ges., 39, 1906, (1809-1818). 



>0 



Acetylmetliylcoumarins 



r- n 1 To n .r p,./CH:CAc 



[_a 2 J and |_o ^J. Me.C,ll3<^_ ^^ 



and their oximes, pJienylhydrazones and 

 tfemirarhazunes. 

 Chuit, P. et Bolsing, V. Paris, Bui. 

 soc. chim., (ser. 3), 35, 1906, (76-90). 



Acetylmethylcoumarins 



[C i] a„d [-1 i] 



and their oximes. 

 Chuit, P. et Bolsing, F. I.e. 



CYCLOID CijHoOs 



1-Oxyxanthone 



and the .methyl ether. 



Ullmann, Fr. und Pancliaud, ].. 

 Liebigs Ann. C'liem., Lcij)zig, 350, 190(), 

 (108-117). 



CYCLOID ChH, 03 



s.s-Dimethylfulgide. 



0-0, m anilp-XlTRnl'HKNVI, HEltlVATlVES. 



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

 Ges., 39, 1906, (292-298). 



