1910 



712 



1910 



CYCLOID CgHeOs 



Dioxycoumarilic acid 

 Bromo-i : G-dimethoxycoumarilic 



acid CuHgOsBr i.e. 

 (OMe)2C6HBr<^^>C . CO^H 



.VND THE CORRESPONDING CHLORODERIVATIVE 

 DlCHLORODIMETUOXYCOUMARILIC ACID 



CnHgOsClj i.e. 

 (OMe)2C6Cl2<^(f >C . CO^H 



Tilden, W. A. ami Burrows, H. 



[Bromo-J: : 0-dimethoxycoumarilic acid 

 and its potassium salt and methyl ester. 

 Mono- and di-chlorodimethoxycoumarilic 

 acids.] London, J. Chem. Soc., 81, 1902, 

 (508-512). 



CYCLOID CtiHiOs 



4 : ()-Dioxycoumaric acid 



Dimethyl ether 

 C6H2(OMe)2(OH) . CH : CH . COzH 



Tilden, W. A. and Burrows, H. [Di- 

 sodium salt of 4 : 6-dimethoxycoumaiic 

 acid from the action of sodiiun ethoxide 

 on liiuettin ; also the silver salt.] 

 London, J. Chem. Soc, 81, 1902, (538- 

 512). 



CYCLOID CioHeOs 



2-0xychromone-j8-carboxylic acid 



(Oxybeiizopyrone carboxylic acid) 

 Ethyl derivative C12H10O5 i.e. 

 HC : CH . C . . C . COjH 

 EtO . C : CH . C . CO . CH 



David, E. und Kostanecki, St[anislaiis] 

 V. Berlin, Ber. D. chem. Ges , 35, 1902, 

 (2547-2549). 



3-Methoxy derivative. 



Kostanecki, St[anislaus] von und 

 Ruijter de Wlldt, J. C. de. Berlin, 

 Ber. D. chem. Ges., 35, 1902, (861- 

 865). 



CYCLOID CnHnOs 



Acetonylmeconin 



NiTItO-DERIVATIVE. 



Book, 'I. Berlin, Ber. D. chem. Ges., 

 35, 1902, (M98-1502J. 



CYCLOID C13H12O6 



7-Acetyl-7-phenylbutyrolactone 

 )3-carboxylic acid 



CO 



/CH2 . CH . CO2H 



\0 — CPhAc 



Stobbe, Hans. Liebigs Arm. Chem., 

 Leipzig, 321, 1902, (83-126). 



CYCLOID CnH.nOs 



3-PhenyI- '»-methyl-furfurane 

 2 . 4-dicarboxyIic acid 



(CeH5)(CH3).C,0(C02H)2 



Buchner, Eduard und Schroder, Hein- 

 rich. Berlin, Ber D. chem., Ges., 35, 

 1902, (782-790). 



CYCLOID C14H12O5 



Dimethylphthalide-tetronic acid 



MeC : CH C . CH2 



MeC : C(C4H303) . C . CO 



AND ITS BROMODERIVATIVE. 



>o 



WolflF, Ludwig. Liebigs Ami. Chem. 

 Leipzig, 322, 1902, (351-391). 



CYCLOID CsH.oOs 



3.3'. 5'-Trioxyflavone 



ALSO ITS TRIMETHOXY AND TRIACETOXY 

 DERIVATIVES. 



Kostanecki, St[anislaus] von und 

 Weinstock, P. Berlin, Ber. D. cheiQ. 

 Ges., 35, 1902, (2885-2887). 



Trioxyflavone. 



TJie Hydrazones 0/ the 24 . 6 Trimethoxy, 



2.4.6.4' Telminethoxy, 2.4.6.3' 



TetramethoxyA . Ethoxy and 2.4.6 



Tritnethoxy-2'-Efhoxy derivatives. 



Kostanecki, St[anislaus] v. und 

 Tambor, J[oseph]. Berlin, Ber. D. 

 chem. Ges., 35, 1902, (1679-1683). 



