1910 



1910 



CYCLOID Ci.HiO 



«-Phenyl-)8-naphthacoumarine 



,0 CU 



-CH : CPh 

 Bartsch, Kurt. Berlin, Bei-. D. chein. 

 Ges., 36, 1903, (1960-1976). 



C,oU6< 



CYCLOID CsiHuO, 



2, 4-Diphenyl-7-oxy-l, 4-benzo- 

 pyranole. 



Biilow, ('. und Riess, G. Berlin, Ber. 

 D. chem. Ges., 36, 1903, (2292-2303). 



CYCLOID C21H18O2 



2, 4-Diphenyl-7-oxy-l, 4-dihydro- 

 pyrane 



Biilow, C. mid Riess, G. Berlin, Ber. 

 D. chem. Ges., 36, 1903, (2292-2303). 



CYCLOID C,iH240v 



1, 8-Dimethyl-i, o-diisopropylxan- 

 thone 



CeH2Me(C3H,)< g^ >CeH,Me(C3H,) 



Fosse, R. et Robyn, A. Paris, C.-R. 

 Acad, sci., 136, 1903, (1566-15691 



CYCLOID C :4H,802 



«, a'-Diphenyl-/3-phenacylfurfurane 

 Q^CPh : CH 



CPh.C.CHjBz 

 and its Ketazine, C^gHjsOjNj 

 Paal, C. und Schulze, H. Berlin, 

 Ber. D. chem. Ges., 36, 1903, (2425- 

 2436). 



CYCLOID CsHv.Oj 



Di-i)tolylphenyltetrahydro-7-pyi'one 

 Goldsclimiedt, G. mid Krczmar, H. 



Wien, Monllfte Chem., 22, 1901, ('749- 



759j. 



CYCLOID Cr.H2602 



Bisdinaphthapyryl 



<^<fS"'II<^>Cll . Cll<!:i"'[{«>0 



Fosse, R. Paris, C.-R. Acad, sci., 

 136, i'J()3, (379-381). 



CYCLOIDS CONTAINING THREE 

 OXYGEN ATOMS. 



CYCLOID C4H4O3 



Tetronic acid C^hK^^jJ^^' 



Anschatz, R. und Bertram, W. Ber- 

 lin, Ber. D. chem. Ges., 36, 1903, (408- 

 472). 



CYCLOIDS C5H4O3 



Isopyromucic acid 



Bromoisopyromlcic acid C5H3Br03 

 and its acetyl and henzoiil derivatives. 

 Chavanne, G. Paris, C.-R. Acad. sci. 

 136, 1903, (49-50). 



Pyromeconic acid 



Ethyl ester C7H8O3 

 Oliveri-Tortorici, Riccardo. Gazz. 

 chim. ital., Palermo, 32, parte I, 1902, 

 (56-62). 



The products of the action of nitrons 

 acid and of phenyl-hydrazine. 

 Peratoner, Alberto. Roma, Rend. 

 Ace. Lincei, fSer. 5), 11, 1= Sem., 1902, 

 (246-250). 



CYCLOID C:H403 



Phthalic anhydiide 



1 >lSLLI'HYDROI'nTUALIDE 



C,H,<^jf")^>0 



Diphenyl derivative CeS,<2^Q^^^^>0 



and the corresponding fi-naphthyl 

 derivative 



DlI'HI'^lYL-DISULPHONE-PUTUALIDE 



C6H,<Cg^^^^')^>0 and 



Dl-p-TOLYL-DISlLVnON-E-rHTUALIDE 



Troeger, J. mul Homung, V. J. 

 prakt. Chem., Leipzig, (N.F.), 66, 1902. 

 (345-352). 



CYCLOID C H O3 



Salicylic acid methylene etherester 

 5-NiTRo nf:RivATivE C6H3(N02'1< ■ . ' 



Borsche, \V. und Berkhout, A. 1^ 



Licbigs Ann. I'heui., Leipzig, 330, 1903, 

 (82-107). 



