672. o-(p-Anisoyl)benzoic Acid

Nomenclature

CAS number: 1151-15-1
2-(4-Methoxybenzoyl)benzoic acid; S-23/46.
C15H12O4; mol wt 256.25.
C 70.31%, H 4.72%, O 24.97%.

Description and references

Prepn from phthalic anhydride and anisole: Meyer, Turnau, Monatsh. Chem. 30, 486 (1909). Alternate route: Arcus, Marks, J. Chem. Soc. 1956, 1627.

Chemical structure

Properties

Leaflets from water. Stout crystals from alcohol or toluene, mp 146°. Very sparingly sol in water. Freely sol in alc, ether, toluene, chloroform, glacial acetic acid.

Derivative

Sodium salt.
C15H11NaO4; mol wt 278.24.
C 64.75%, H 3.98%, Na 8.26%, O 23.00%.

Properties

Needles. Freely sol in water. Sol in alcohol. Rated approximately 150 times as sweet as cane sugar. Bitter taste if used in concns exceeding 0.2 g/liter. Review: Mhler, Z. Lebensm.-Unters. Forsch. 90, 431 (1950), C.A. 44, 8558d (1950).

Use

The sodium salt has been proposed as a sweetening agent.