y-Terpineol has not yet been found in nature. v. Baeyer3) obtained it by reducing tribrom-l,4,8-terpane, which in time he had obtained by brominating dipentene dihydrobromide.

It also results when terpin is heated with oxalic acid or phosphoric acid.4)

Recrystallized from ether, y-terpineol forms thick prisms melting at 69 to 70°, which possess the agreable odor of elder-blossoms. In order to identify y-terpineol, it can be converted into the acetate, the blue nitrosochloride of which melts at 82°.

1) Report of Schimmel & Co. April 1901, 79; Stephan and Helle, Berl. Berichte 35 (1902), 2147.

2) Wallach, Liebig's Annalen 345 (1903), 128; Comp.also Wallach, Terpene u. Campher, p. 333.

3) Berl. Berichte 27 (1894), 443.

4) Ibidem 715.