1408. p-Bromobenzoic Acid

Nomenclature

CAS number: 586-76-5
C7H5BrO2; mol wt 201.02.
C 41.82%, H 2.51%, Br 39.75%, O 15.92%.

Description and references

Prepd by oxidation of p-bromotoluene with potassium permanganate: Hale, Thorp, J. Am. Chem. Soc. 35, 269 (1913).

Chemical structure

Properties

Needles from ether, leaflets from water or 90% alcohol. mp 251-253°. Slightly sol in hot water. Sol in alc, ether.

Derivative

Methyl ester.
C6H4BrCO2CH3; mol wt 215.04.
C 44.68%, H 3.28%, Br 37.16%, O 14.88%.

Properties

Needles from ether or leaflets from dil alcohol, mp 81°. d 1.689. Sol in alc, ether.

Derivative

Ethyl ester.
C6H4BrCO2C2H5; mol wt 229.07.
C 47.19%, H 3.96%, Br 34.88%, O 13.97%.

Properties

Liquid; bp737.4 262°.

Derivative

Phenyl ester.
C13H9BrO2; mol wt 277.11.
C 56.35%, H 3.27%, Br 28.83%, O 11.55%.

Properties

Scales, mp 117°. Sol in alc, ether, chloroform, CS2, benzene; less sol in petr ether.

Use

For the detection of strontium; in org syntheses.