Acids. 



608 



1330 



BENZENOID ACIDS WITH FOUR 

 OXYGEN ATOMS. 



BENZENOID ACIDS CHzn-sO* 

 ACIDS C7H„04 



Dioxybenzoic acids. 



Kailan. 7GG47. Verestermig von 

 (1, 2, 4j-, (1, 3, 4j- und (1,3, 5)-Dioxy- 

 benzoesauren tlurcli alkoholische Salz- 

 sjiure 



j8-Resorcylic acid 



(HOj^CeHj.CO^H [1:2:1] 

 Methyl ester. 

 Baeyer. A., 372, (85j. 



Protocatechuic acid 



(IlOj^Cella.CO.II [1:3: 1] 



Methylene ether 



CH2 : O2 : CeHj.COjH 



Piperonylie acid. 



Methyl ester ((1Il202)CeH3.C02Me 



and its nitro, an)iiio and cyano 



dei'ivativcs. 



Oertly n. Pictet. 1!., 43, (1336). 



Dimethyl etiiki; (.MeO)2CsH3.C02H 



Vcndric acid. 



v-(o)-Nitroveiatric acid 



C\H2(C02H)(N02)(OMe)2 



and the chloride and amide. 



Pisovschi. B., 43, (2137). 



M0XOMETHYL ether nO.C6n.,(OMe).C02H 

 Vanillic acid. 



CARBOMETnOXY-VANILLIO ACID 



CO,Me.O.C6H3(OMe).C02H 

 and its ctliioride and oakuometiioxy- 



VANILLYL-p-OXYnENZOlC ACID. 



Fischer n. Freudenberg'. A., 372, (-17). 

 ACIDS C9H10O4 



Phenylglyceric acid 



PhCll(0H).CH(0H).C02H 

 Diacetyl derivative 

 C6H5.CH(OAc).CH(OAc).C02H 

 Dieckmann. B., 43, (1032j. 



Bcnzijlideiie-phcnijlghjceric acid. 



Etbvl ester piiCH<*^-9^^-^^2^' 

 O.CIIPli 



Dieckmann. B., 43, (1024). 



(4:3: l)-Dioxy-i3-phenylpropionic 

 acid. 



a^-DlCIII.ORODI()XYI>HENYLPR0PI0NIC ACID 

 (HOj2C6H3.CHCl.CHCl.CO2H 



Carboiiyl derivative 

 CO : O2 : C6H3.[CHC1]2C02H 

 Clarke. 74138. 



Dichloromethijlene dei-ivative of the 



chloride 

 CCI2 : O2 : CeHj.CHCl.CHCl.COCl 



Clarke. 74138. 



BENZENOID ACIDS CnHjn-ioO^ 

 ACIDS CiH604 



Phthalic acids C6il4(C02H)2 



Bucher iSi Slade. 73821. Anhydrides 

 of isojjlithalic and tereplithalic acids. 



Pugliese e Selvag-gi. 79236. Deri- 

 vati isoftalici e tereftalici [di p-ammino- 

 fenolij. 



Phthalic acid C6H,(C02H)2 



Allan. 72732. Barium salts. 



Allegxi. 72734. Derivati ftalici . . . 

 deH'o-anisidina. 



Tingle * Bates. 80899. Tingle & 

 Brenton. 80902. Action of amines on 

 phthalic acid. 



Methyl ester. 



Allin. 72739. A third methyl ester 

 of plithalic acid 



C6H,(C02Me)2 iC^H, : C2O3 



PlITHALYL CHLORIDE. 



Kloppe. 7G88G. Phtalylchlorid und 

 Phtalylglycylchlorid. Diss. 



Phthalic anhydride. 



Boulin. 73630. Condensation de 

 I'anhydiide jihtalique avec lea naphtols. 



3 : a-DiCHLOROi'iiTHAiic acid. 

 Crossley & Wren. 74281. 



3 : G-DlCHLOROrHTHALIC ACID. 



Di-»i-tolnidine and di-p-chloroaniline 

 salts. 



Tingle & Bates. Am. Soc, 32, (1319). 



Tetrachlorophthalic acid. 

 Delbridge. 74419. 



