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© 1974 Society of Cosmetic Chemists
Journal of the Society of Cosmetic Chemists, Vol. 25, No. 5, 263-269


Die Photochemie von Sonnenschutzmitteln II. Über die Photochemie von Methyl-p-dimethylaminobenzoat
C. D. M. Ten Berge , C. H. P. Bruins

ABSTRACT

Synopsis

Photochemistry of sunscreens. II. The photochemistry of methyl-p-dimethyl-aminobenzoate.—The isolation and identification of another two photochemical reaction products of METHYL-p-DIMETHYLAMINOBENZOATE are described; ULTRAVIOLET IRRADIATION of this compound in 1,4-dioxane in the presence of oxygen yielded also METHYL-p-N-FORMYLAMlNOBENZOATE and METHYL-p-AMINOBENZOATE. Isolation was achieved by means of gas chromatography. The two products were identified by comparison of the IR, NMR, and mass spectra of the isolated and synthesized substances. For METHYL-p-(N-FORMYL-N-METHYL)-AMINOBENZOATE, mentioned in a previous communication, a new synthesis is described.

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© 1974 Society of Cosmetic Chemists
Journal of the Society of Cosmetic Chemists