1910 



CYCLOIDS CioH,02 



^ Methylchromone 



1, 3-DlOXY-)3-METHYLCHROMOXE 



. CMe 



and the diacetijl deriviitive. 



Jochum, E. untl Kostanecki, St. von. 

 Berlin, Ber. D. cliem. Ges., 37, 1904, 

 (2099-2101). 



Methylcoumarin 



ClILUROiMETIiYLCOUMARIN 

 CH2CI.C6H3<^ 9^ 



CH^CH 

 Stoermer, R. and Oetker, E. Berlin, 

 Ber. D. chem. Ges., 37, 1901, (192-203). 



CYCLOIDS C,,H,„02 



Dimethylphthalide 



l'r('])aration by interaction of magncsiiun 

 methyl iodide and phthalic anhydride. 



Bauer, H. Berlin, Ber. D. chem. 

 Ges., 37, 1901, (735-737). 



Isosafrole 



BmiMO ISOSAFROLE DIliROMUiE 



CH2<o>GGTT2Br.CHBr.CnBrMe 



Pond, V. J. iind Siegfried, C. R. -T. 

 Amer. Chem. Soc, Easton, Pa., 25, 

 1903, (262-272). 



871 Cycloids containing oxygen. 



CYCLOIDS C13H14O2 



2, 3, 5-Trimethyl-l-anhydromethyl- 

 7-oxy-i, 4-benzopyranole 



Hydrochloride and picrate. 



Biilow, CI. nnd Deiglmayr, 1. Berlin, 

 Ber. D. cliem. Ges., 37, 1901, (1791- 



1800). 



2-Methyl-3-ethyI- 1 anhydromethyl- 

 7-oxybenzopyranole. 



Biilow. C. und Deiglmayr, 1. Berlin, 

 Ber. D. chem. Ges., 37, 1901, (1528- 

 4531). 



CYCLOID CisHioOz 



a-Phenylcoumarin C5H4< ^ * . 



Borsche, W. nnd Streitberger, F. 

 Berlin, Ber. D. chem. Ges., 37, 1904, 

 (3IG.3-31G7). 



CYCLOIDS CsHj.O^ 



Flavanone 



Synthesis. 



Kostanecki, St. von und Szabrariski, 

 W. Berlin, Ber. 1). chem. Ges., 37, 1901, 

 (2G31-2G35). 



2- EnioXYKr.AVANONE 



Benzijlidcnc-etliuxii flavanone, also . the 

 an'i(^lll'i(]cne and vcralral derivatives. 



Katscbalowsky, A. nnd Kostanecki, 



St. von. ]5erlin, Ber. D. chem. Ges., 

 37, 1901, (3169-3172). 



CYCLOID CisHijOa 



2, 3-Dimethyl-l-anhydromethyl 7- 

 oxy-i, l-benzopyranole 



and the 7-acetyl dcrivate. 



Biilow, C. und Deiglmayr, I. I'l'ilin, 

 I'.er. D. chem. Ges., 37, 1904, (1791- 

 1800). 



CYCLOID C.HzzOz 



Oxydimethylcampholenol 

 C'lj <^'^^''2 ■ c^^fo— -^ 



' CH2- C(CH2.CMe2.0n) 



Behal, A. Paris, Bui. soc, chiui., 

 (ser. 2,), 31, 1904, (460-466;, 



1, 3-DlMETnOXYFLA.VANONE CnHj^O^ 



and the isomtroso derivative. 



Kostanecki, St. von, Lampe, V. und 

 Tambor, J. Berlin, Ber. D. chem. Ges-, 

 37, 1904, (2803-2806). 



2, 2'-DiHi:TnoxYFLA.vAN0NK, and the 

 hoii il roso derivative. 



Katschalowsky, A. und Kostanecki, 

 St. von. Berlin, Ber. D. chem. Ges,, 

 37, 1904, (2346-2351). 



3, 2'-DlMETn0XYFLAVAN0NE. 



Kostanecki, St. von und Szlagier, A. 

 von. Beilin, Ber. D. chem. Ges., 37, 

 1904,(4155-4158). 



