Patchouly oil

Patchouli alcohol. Patchouli oil comes from Pogostemonpatchouli and the main constituent is patchouli alcohol [5986-55-0] (105) or patchoulol. Another component of the essential oil is norpatchoulenol (106), a norsesquiterpene derivative as a minor (3—5%) constituent, important ia determining the overall odor of the essential oil (197). The price of patchouli oil ia 1995 was 20.90/kg from Indonesia (69). Alarge proportion of the oil (40—60%) is comprised of sesquiterpene hydrocarbons that do not have much odor value. World production of the oil was at about 750 t ia 1984. It is valuable ia perfumery bases because of its characteristic woody, herbaceous odor (198). 

Guaiol and Bulnesol. The main constituents of guaicwood oil are the sesquiterpene alcohols guaiol [489-86-1] (107) and bulnesol (108). When the alcohols are dehydrated with acid, many of the hydrocarbons formed are also found ia patchouli oil. 

Patchouli oil is distilled from the dried leaves of several types of tbe patchouli plant, of which the principal it Poiiostemon patchouli. E. M, Holmea gives Ihe following inuiresiing information as toils holauical source and origin —... 

Von Soden and Eojahn have isolated two sesquiterpenes from patchouli oil, which have the following characters —... 

Patch coating, 7 24 Patchouli oil, 24 542 in perfumes, 78 370 Patcote, commercial defoamer, 8 24 It Patentability, prerequisites for, 78 172-177 Patentability searches, 18 207 Patentable subject matter, 78 165 Patent abstracts, pharmaceutical-related, 78 235-236... 

Patchouli oil is produced by steam distillation of the dried leaves of Pogostemon cablin (Blanco) Benth. (Lamiaceae). It is a reddish-brown to greenish-brown, more or less viscous liquid with a characteristic, slightly camphoraceous, woody balsamic odor. 

Worldwide production amounts to some lOOt/yr. Patchouli oil is very tenacious and is used in perfumery for oriental and masculine notes. It is used to a large extent in fabric conditioner perfumes due to its high substantivity. FCT 1982 (20) p.291 [8014-09-3], [84238-39-1],... 

Patchouli alcohol or patchoulol (203) is a major constituent (30-45%) of the patchouli essential oil which is extensively used in perfumery [68]. The essential oil is obtained by steam distillation of the dried leaves of Pogostemom cablin (Blanco) Benth. (Lamiaceae). Although it is the main component of the patchouli oil, this compound contributes less to the characteristic odour of the oil than nor-pachoulenol (206), present at a concentration of only 0.3-0.4%. 

Sesquiterpenic alcohols used in perfumery are mainly of natural origin. Three alcohols of this type are shown in Figure 8. Cedrol is the main alcohol constituent of cedarwood oil. Alpha-santalol constitutes about 80% of sandalwood oil and about 30% patchouli alcohol is found in patchouli oil, a very popular woody-earthy fragrance material. 

Patchouli oil is one of the most widely used and valuable of perfumery materials, coming from the dried leaves of a plant that grows in Indonesia and other Southeast Asian countries. Most of the production is distilled locally, often in old-fashioned equipment from which the oil picks up a considerable amount of iron. As will be... 

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