Acids. 502 



BENZENOID ACIDS WITH FIVE 

 OXYGEN ATOMS. 



BENZENOID ACIDS CnH 2 ..- 8 B 



ACIDS CtHbO., 



4:3:2: i-Trioxybenzoic acid. 



igallol earboxylic acid. 



Mauthner. 113283. Die Synthese 

 der Depside der Pyrogallolcarbonsaure. 



Phloroglucinol earboxylic acid 

 ^HO) 3 C 6 H 2 .C0 2 H[6:4:2: 1] 

 Carbomethoxt derivatives. 



Fischer u. Strauss. B„ 47, (317). 



1330 



Gallic acid 

 C 6 H 2 (OH) 3 .C0 2 H[5 : 4 : 3 : 1] 



Biddle. 109575. The melting point 

 ^f ethyl gallate. 



Schwenk. 115006. Gallussaure. 



3 : 5-!>IMET!IYL ETUER 



HO.C 6 H,<o;\le) 2 .C0 2 U Syriwjic acid. 



Carbomethoxijsyringic acid. 



C0 2 Me.O.C 6 H 2 (OMe) 2 .C0 2 H 



and the compound 



C0 2 Me.O.C 8 H 2 (OMe) 2 .CO.O.C 6 H 2 (OMe) 2 . 



C0 2 H. 



Also disyringie acid 



HO.C 6 H 2 (OMe) 2 .CO.O.C 6 H 2 (OMej 2 C0 2 H 



and similar compounds. 



Lepsius. A., 406, (16). 



Tannin. 



Dekker. 110398. (.erbstoffe. (Hol- 

 landisch.) 



Fischer u. Freudentoerg. 110862. 

 Tannin uud die Synthese ahnlicher 

 Stoffe. 



Geake u. Nierenstein 111168; Iljin 

 111988.. Zur Konstitutionsfrage des 

 Tannins. 



Navassart. 113657. Kolloidohemi- 

 sche Studien am Tannin. 



Singh. 115124. Nickel tannates. 



Sommerhoff. 115223. Loslichmachen 

 von „Gerbmehlen" (Phlobaphenen) 

 durch Hydrolyse mit Schwefligersaure 

 und iiber die Wirkung von Dextringlu- 

 cosezusatzen zu den Gerbstoffgluco- 

 siden. 



BENZENOID ACIDS CuH2..-ioOs 



ACIDS C B H 8 5 



Oxyisophthalic acid. 



Dodge. 110492. Some derivatives 

 of 4-oxy-iso]i!itlialic acid. 



Oxyterephthalic acid. 



OXYAMINOTEREPHTHALIC iOID. 

 OlYANILIDOTEREPHTHALIO ACID. 



co 2 h.c<^ : j [! > | i ) ;;| h >cco 2 h 



And similar compounds. 

 Liehermann. A., 404, (315). 



BENZENOID ACIDS CHzn-iaOs 

 ACID CuHmOs 



Oxydiphenyl dicarboxylic acid 



HU.O e H 3 (C0 2 H;.C 6 H 4 .C0 2 H 



Isomerides. 



MudrovSic. M. f 34, (1417). 



ACID C I5 H 12 5 



o-2 : 4-Dioxytoluoylbenzoic acid 

 C 6 H 2 Me(01i) 2 .CO.C a H 4 .C0 2 H 



Cohn. 110201. 



BENZENOID ACIDS CmH 2 „_ 22 0s 



acids C 15 H 6 6 



5-Oxyanthraquinone 2-carboxylic 



acid HO.C 6 H,:(CO) 2 :C 6 H 3 .C0 2 H 



.Methyl ester. 



Eckert. M., 35, (294). 



l -Oxyanthraquinone 2-carboxylic 

 acid 6 H 4 : (CO), : C B H 2 (OH).C0 2 H 

 Scholl. M., 34. (1023). 



ACIDS CibHuOs 



Dibenzoylacetone earboxylic acid 



Bz.OH 2 .CO.CHBz.C0 2 H 



Lactone C,,H 12 4 



Dehydrobenzoylacetia acid. 



Schbttle. 114927-114928. Einwir- 

 kung von Aniinen auf die Debydro- 

 benzoylessigsaure. 



2:4: a Trioxy-benzylnaphthoic acid 

 BO.CHPh.C 10 H 4 (OH) 2 .CO 2 H 



Acetyl derivative of the ethyl estek. 



Nowak. M., 35, (909). 



