Mixed Cycloids. 



543 



1911 



CYCLOID C..H.0 



Oxymethylfurfuraldehyde 



HO.CrJ .<\ll.<> I II" 



Erini i i ,i i Uso i raoxi we ihyi.- 



pthomdoic k< id EtO.CHi.C 4 H 2 O.COjH 



Fischer u. Neyman B, 47, '.' 

 CYCLOID C ; ri\0 3 



Furfuracrylic acid 

 C 4 H s O.CH : CH.C0 2 H. Estebs. 

 Blicke. B., 47. (1352): 109655. 



CYCLOID C 8 H 6 3 



4- and ~0xycoumaranone-2 

 HO.C 6 !I 3 < ( ^>t'II 2 

 Methyl ethers and derivatives. 

 Auwers a. Pohl. A , 405, (265). 



CYCLOIDS d.H-Oj 



tf-Methylumbelliferone 

 nor n ^CMe:CH 



Bbomo derivative i fi- Ilromo-l-OxyA- 

 meihyl-coumarin . 



Tries a. Lindemann. A., 404, (60). 



6-0xy-4-methyl-coumarin 



HO.C 6 H3< ( ' M " :, ' II 

 CO 



Fries u. Lindemann. A., 404, (69). 

 CYCLOID C, H 3 



l : 0xy-i : 4 dimethylcoumaranone 

 C,H 3 Me< C c >CMe.OH 

 and ili" ETHYL ether. 

 Auwers. 15., 47, (3292). 



CYCLOIDS C ; H 0: 



6-Oxy-3 : 2-dimethyl chromone 



HO.C,lL< (,,( . Me 

 0. CMe 



Simonis a. Lehmann. 15., 47, (697). 



"-Oxy-2 : 3-dimethylchromone 



H0.C 6 H s <°~9 Me 



('U.CMe 



Simonis u. Remmert. B., 47, (2229J. 

 (D-9042) 



CYCLOID ChH.O N 



Xanthylcarbamic acid 

 0<£ 6 5 4 >CH NH.CO II 



tell 4 

 ESTEBS and DERIVAT] 



Fosse. C.R., 158, (1432). 



CYCLOID C-H.oOs 



Flavonol 

 .0 . CPh 

 I C.OH 

 Auwers ii. Pohl. A., 405, (287 



C,H 4 < 



LACTONE C 3 oH 5fc 03 

 hi Candelilla wax. 

 Meyer ii. Brod. M\, 84, (1168). 



CYCLOIDS WITH FOUR OXYGEN 



MOMS. 



CYCLOID C 6 H 1( 04 



Glucal 

 HO.CH.C(CH.OH >Q , ? . 

 CH 2 .CH(CH 2 .OH) 



And its triacettl derivative and 

 DIBTDBIDE. 



Fischer. B., 47, (196). 



CYCLOID CH5O4 



37-DimethylcrotolactOIiecarboxylic 



acid HC< CMe -9 H - CH - 00 > H 

 CO.O 



Pauly el alii A., 403, (138). 

 CYCLOID C 7 H 10 O4 



7 Oxy-#-methyladipic acid lactone 

 ,CHMe.CH.CHj O ' H 

 "CO — 6 

 Pauly el alii. A., 403, 1 155). 



cn.< 



CYCLOIDS C,oH 6 04 



4-Methyl-7 : 8-coumarinquinone 



pnn --CMe : CH 

 C 6 H 1 2<o __. o 



Also 4-methyl-5 :6- and 6,7-coumarin- 

 quinones 



and their derivatives. 



Fries u. Lindemann. A., 404, (75). 

 2 m 



