Mixed Cycloids. 



CYCLOIDS CiiH, OS 



" 5-Trimethylthiochromone 



Me.l .H, < 



O.CMe 



Also the i 8 :2:3- 



innmrrides. 



Simonis u. Rosenberg. 13, 47. L236 

 CYCLOID CmH, 2 



3-Methyl-xanthene 

 , '.:M-.< , ll ->C 6 H 3 Me 

 Borsche u. Geyer. B, 47, (1157). 

 CYCLOID ChHhO 



3-MethyM : 2 : 3 : l-tetrahydro- 

 xanthene 



C s H 4 <° H *>C e H 7 Me 

 Borsche u. Geyer. B, 47. i 1 159 

 CYCLOID C 14 H,oO 



Triethylphthalone (; 6 H 4 < ( ( .' ) I ' | |. > t >< i 

 Simonis u. Remmert. B., 47, 2310). 

 CYCLOID CisHhO 



Phenyldiliydrocoumarane 



C.H 4 < W1 -'.". 

 0— CHPh 



Borsche u. Geyer. B., 47, 1160). 



541 



1911 



cycloid C 19 H 13 OX 



Phenylxanthonium compounds 



CPh<^[!<>ox 



1.11; 



Kehrmann u. Bonn. H., 47, (3052). 



cycloid C.,H 1; 

 Di-o-naphthylbenzfurfurane 



U « U *^C(C 10 H 7 ) >O 



Seer u. Dischendorfer. M., 34, 



(1493). 



CYCLOIDS WITH TWO OXYGEN 



A TOMS. 



cycloid C3HC-2 



,0 



Glycide CH 2 (OH).CH< 



Preparation. 

 Niviere. BI. f [4], 15, (464). 



CH, 



CYCLOID C H,.0. 



Furfuraldehyde. 

 Heuser. 1 I 1802. Bildung ron Fur- 

 Eurol beim Dampfen di 3 Eolzes [action 

 >»f si i - i on wood J. 



CYCLOID C H a 2 



Valerolactone. 



Leonardi L12804a. Derivati del y- 



lactone. Losanitscli. Konden- 



Bationen von Valerolacton mit aroma- 



tischen Aldebyden and E< chen 



Ketonen. M., 35, (31 1 . 



CYCLOID C,H 0, 



#7-Dimethylcrotolactone 

 H Q^,CMe.CHMe 



co— 6 



Methylangelicalactone. 

 Pauly et alii. A., 403, (150). 



CYCLOID C 7 H 8 2 



Furyl ethyl ketone 

 C 4 HjO.CO.C 2 H 6 



Also FURYL ra-PBOPYL KETONE, FUBYL 



[SOBUTTL KETONE ai.'l FURYL ISOAHIL 



KETONE. 



Asahina u. Murayama. 109171. 

 CYCLOID C 9 H 6 2 



Coumarin C 6 H 4 < ° ■ co 

 CH: CB 



Preparation from o-chloroplienyl- 

 propiouic acid. 

 Meyer et alii. fi I., 34, (1665). 



CYCLOID C 9 H 14 0, 



Dihydro-7r norcamphoienic lactone. 

 Rimini. G., 44. i, 568). 



CYCLOIDS C.H.oO* 



i i-Dimethylcoumaranone 

 C,H,Me<g >CHMe 



Auwers. B., 47, (3292). 



•'-Methylchromanone 

 OMe:CH.C CO.I II- 



CH : CH.C.O.CH,. 



And its BENZYLIDENE DEItiviTlVE. 



Auwers u. Krollpfeiffer B., 47 



(2585J. 



