Cycloids containing oxygen. 



694 



1911 



CYCLOID Cj.HitOa 



Acid (from m-eresol and pJiUutUc anhrj- 



</rK/e)C02H.CeH4.CH<Jr!6J"j!^{^>0 



-Mcthyl ester. 

 Ferrario et Neumann. Bl., 5, (1099). 



CYCLOIDS WITH FOUR OXYGEN 

 ATOMS. 



CYCLOID CeH.Oi 



a-Acetyltetronic acid 



/CO.O 

 CMe(OH) : C< | 



\CO.CHj 



and tlie amide and amude. 

 Senary, E. P,., 42, (.3918). 



i-Methyl-8-oxycoumarin-a- 

 carboxylic acid 



Ethyl e^tei: and /S-enLomi deuivative. 

 A 1-0 the a-CYANn derivative. 

 Anschutz. A., 367, ;i':?]). 



CYCLOID CuHi O4 



Hydroxyoxidecamphane carboxylic 



acid C,H,,<\ ^-'"^^ 

 C(OH) 



Bredt. A 



>0 



366, (37). 

 CYCLOID CHH:rO. 



a-Acetyl--'.3,3oxynaplitha- 



coumann 

 Anschiitz. A.. 367 



0- 



f26r) 



-co 



CYCLOID CKHio04 



3-Oxy-l-methylbrazanquinone 



and 3-METiiuxv cumi'ouxd. 

 Grafmann, A. u. Kostanecki, St v 

 B., 42, ^2o . 



CYCLOID Ci,Hi404 



Oxyphenylxanthenol 

 HO.CeH3<!::^'^'^,'-_!^>C6H3.0H 

 Kropp, W. u. Decker, H. B., 42, (582). 



CYCLOID C H, O4 



Diphenyleneoxide-keto benzoic acid 



CeH3.CO.C6H4.CO2H 

 and its amide, oxime-anhydride and 



rilENYEIIYDRAZiiNE ANHYDRIDE. 



Stiimmer. M, 28, (4H;j. 



CYCLOIDS WITH FIVE OXYGEN 

 ATOMS. 



CYCLOID CeHuOi 



3-Oxychromone I'-carboxylic acid. 

 Liebermann, C. u. Lindenbaum, S. 

 B., 42, (1404 . 



CYCLOID Ci H.:05 



)3-Oxycoumarin "-carboxylic acid 



,C oil,:: C.C62H 



'O CO 



AnscMtz. A., 367, ^ 74). 



f4< 



CYCLOID CioHioOs 



Opianic acid 



Methyl and ethyl esters. 

 Wegscheider, Muller u. CWari. 72198. 



CYCLOID CnH.Os 



3-0xy-)3-methylchromone 

 2-carboxylic acid 



/O . Cile 

 CO^H.CeHjiOHj/ II 



\CO.CH 

 Liebermann. C. u. Lindenbaum, S. 

 B,, 42, iJ400>. 



CYCLOID Ci;H. 0: 



Acetyl-^-methylaesculetin. 

 Power & Moore. G99S1. 



CYCLOID Ci4H,05 



2,3-Naphtha-/3.oxycoumaiin 

 a- carboxylic acid 



and the aCYANo CO.mpousd. 

 Anschutz. A., 367, (254). 



CYCLOIDS Ci H: = 



a and /8-Anliydrotrimethylbrazilone- 

 Xitro and xitroacettl derivatives. 

 Perkin & Robinson. 09749. 



1 



