So many well-known perfume substances among the tri-substituted benzenes possess the 1, 3, 4 arrangement that this has been called by Georg Cohn the “ideal configuration.” Borneol, menthol, carone, fenchone, thujone, menthone, pulegone, camphor, carvacrol, thymol, eugenol, isoeugenol, safrol, piperonal, vanillin, acetovanillone, certain of the synthetic musks, and many others might be cited as illustrations of the fact that such an ...
