6622. 4-Nitrophenylacetic Acid

Nomenclature

CAS number: 104-03-0
4-Nitrobenzeneacetic acid; p-nitro-α-toluic acid.
C8H7NO4; mol wt 181.15.
C 53.04%, H 3.89%, N 7.73%, O 35.33%.

Description and references

Prepd by hydrolysis of p-nitrobenzyl cyanide with 50% H2SO4: Robertson, Org. Synth. 2, 59 (1922); coll. vol. I, 406 (2nd ed., 1941).

Chemical structure

Properties

Long, pale yellow needles from water. mp 153°. pK (25)° 3.98. Absorption spectrum: Hewitt et al., J. Chem. Soc. 101, 1774 (1912). Sparingly sol in cold water; sol in alcohol, ether, benzene.

Derivative

Methyl ester.

Nomenclature

CAS number: 2945-08-6
C9H9NO4; mol wt 195.17.
C 55.39%, H 4.65%, N 7.18%, O 32.79%.

Properties

mp 54°.

Derivative

Benzyl ester.

Nomenclature

CAS number: 6035-06-9
C15H13NO4; mol wt 271.27.
C 66.41%, H 4.83%, N 5.16%, O 23.59%.

Properties

mp 92°.

Derivative

Nitrile see 4-Nitrobenzyl Cyanide.