Pyrogallol dimethyl ether is found in beechwood tar.
It in circa cluded the Carpathian region of Bukovina, literally the beechwood, " where lay Sereth and Suciava (Suczawa), the earliest residences of the voivodes, the maritime district of Budzak (the later Bessarabia), with Kilia, Byelgorod and the left bank of the lower Danube from Galatz to the Sulina mouth.
Reinsch on distilling catechin (the juice of Mimosa catechu); occurs free in kino and in beechwood tar; its sulphonic acid is present in the urine of the horse and man.
It results in the alkaline fusion of many resins, and may be prepared by fusing ortho-phenolsulphonic acid, o-chlorphenol, o-bromphenol, and o-phenoldisulphonic acid with potash, or, better, by heating its methyl ether, guaiacol, C 6 H 4 (OH) (OCH 3), a constituent of beechwood tar, with hydriodic acid.
Guaiacol may be obtained directly from beechwood tar, from pyrocatechin by methylation with potash and potassium methyl sulphate at 180°, or from anisol by nitration, reduction of the ortho-nitroanisol to amino-anisol, which is then diazotized and boiled with water.