9539. 2-(p-Toluyl)benzoic Acid

Nomenclature

CAS number: 85-55-2
p-Toluyl-o-benzoic acid; 4′-methylbenzophenone-2-carboxylic acid.
C15H12O3; mol wt 240.25.
C 74.99%, H 5.03%, O 19.98%.

Description and references

Prepd from phthalic anhydride and toluene in the presence of aluminum chloride: Friedel, Crafts, Ann. Chim. Phys. [6] 14, 447 (1888); Fieser, Org. Synth. 4, 73 (1925).

Chemical structure

Derivative

Monohydrate.

Properties

Triclinic pinacoidal crystals from alcohol. Sweet taste. Becomes anhydr at 100°, then melts at 146°. Slightly sol in boiling water; freely sol in alcohol, benzene, ether, acetone, boiling toluene.

Derivative

Methyl ester.
C16H14O3; mol wt 254.28.
C 75.57%, H 5.55%, O 18.88%.

Properties

Plates from methanol, mp 53°. Soluble in alcohol, benzene.