585-76-2 Usage
Chemical Properties
white to light yellow crystal powder. soluble in alcohols and ethers, insoluble in water.Used as organic synthesis reagent.
Uses
3-Bromobenzoic acid was used as test solute in the determination of acidity constants by capillary zone electrophoresis. It was used as internal standard to study the retention mechanisms of an unmodified and a hydroxylated polystyrene-divinylbenzene polymer by solid-phase extraction. It was also used in synthesis of N-(1,1-dimethyl-2-hydroxyethyl)-3-bromobenzamide.
Preparation
3-Bromobenzoic acid is synthesized from 3-bromotoluene by oxidation of potassium permanganate. Mix m-bromotoluene, potassium hydroxide and water, heat to boiling, slowly add potassium permanganate, and reflux for 4 hours after adding. After acidification by filtration, the crude product was obtained by filtration. Then it is dissolved in ethanol with ammonia water, acidified with hydrochloric acid, filtered and washed with water to obtain 3-bromobenzoic acid.
Synthesis Reference(s)
The Journal of Organic Chemistry, 15, p. 481, 1950 DOI: 10.1021/jo01149a007
Purification Methods
Crystallise the acid from acetone/water, MeOH or acetic acid. The anilide has m 137o (from EtOH/H2O). [Beilstein 9 IV 1013.]
Check Digit Verification of cas no
The CAS Registry Mumber 585-76-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,8 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 585-76:
(5*5)+(4*8)+(3*5)+(2*7)+(1*6)=92
92 % 10 = 2
So 585-76-2 is a valid CAS Registry Number.
InChI:InChI=1/C7H5BrO2/c8-6-3-1-2-5(4-6)7(9)10/h1-4H,(H,9,10)/p-1
585-76-2Relevant articles and documents
Harris,Smith
, p. 168 (1936)
Efficiency of lithium cations in hydrolysis reactions of esters in aqueous tetrahydrofuran
Harada, Yumi,Hayashi, Kazuhiko,Ichimaru, Yoshimi,Imai, Masanori,Kojima, Yuki,Maeda, Azusa,Nakayama, Kanae,Sugiura, Kirara
, p. 581 - 594 (2021/06/06)
Lithium cations were observed to accelerate the hydrolysis of esters with hydroxides (KOH, NaOH, LiOH) in a water/tetrahydrofuran (THF) two-phase system. Yields in the hydrolysis of substituted benzoates and aliphatic esters using the various hydroxides were compared, and the effects of the addition of lithium salt were examined. Moreover, it was presumed that a certain amount of LiOH was dissolved in THF by the coordination of THF with lithium cation and hydrolyzed esters even in the THF layer, as in the reaction by a phase-transfer catalyst.
Selective oxidation of alkenes to carbonyls under mild conditions
Huo, Jie,Xiong, Daokai,Xu, Jun,Yue, Xiaoguang,Zhang, Pengfei,Zhang, Yilan
supporting information, p. 5549 - 5555 (2021/08/16)
Herein, a practical and sustainable method for the synthesis of aldehydes, ketones, and carboxylic acids from an inexpensive olefinic feedstock is described. This transformation features very sustainable and mild conditions and utilizes commercially available and inexpensive tetrahydrofuran as the additive, molecular oxygen as the sole oxidant and water as the solvent. A wide range of substituted alkenes were found to be compatible, providing the corresponding carbonyl compounds in moderate-to-good yields. The control experiments demonstrated that a radical mechanism is responsible for the oxidation reaction.