Thujyl acetate

Thujyl acetate Artemisia absinthia (leaf tops, OD-R... 

Composition of the essential oil Mainly a- and P-thujone, thujyl alcohol and thujyl acetate respectively [301 ]. Some chemotypes contain cis- and trans-epoxyocimene, sabinyl and chrysanthenyl acetate, chrysanthenol as main components [302]. For latest literature see [303]. 

Sa le of Sapoiiifica tlou Nuni her. Correspoud-iug Amount ot Alcohol. Alcohol Combined as Acetate. Amonnt of Free Alcohol 1 in Oil = Thnjyl Alcohol Amount of. Acetate present = Thujyl Acetate. 

Free Alcohols alone.—In this case the content in free alcohols (borneol, geraniol, terpineol, linalool, menthol, citronellol, santalol, thujyl alcohol) is determined by transforming the alcohols into the corresponding acetates by boiling with acetic anhydride and then determining the saponification number of the acetylated product acetyl saponification number). 

I5-IIO Thujone (absinthol), thujyl alcohol and its esters (acetic, isovaleric, palmitic), phellandrene, cadinene, blue oil (azulene) OU of turpentine... 

Oil of Wormwood. Volatile oil from leaves and tope of Artemisia absinthium L.. Composltae. Constit. Thujyl alcohol and acetate thujone, phellandrene, cadinene also a blue oil. 

Definition Volatile oil from leaves and tops of Artemisia absinthium, contg. thujyl alcohol and acetate, thujone, phellandrene, cadinene Properties Almost colorless, yel. amber, to dk. grn. or brn. oily liq. very strong odor sol. in ether, 2 vols 80% alcohol very si. sol. in water dens. 0.925-0.955 (15/15 C) flash pt. 132 F ref. index 1.460-1.4741 (20 C)... 

Sample of (Ml. Gua. oi Oil Used. C.C.of alcohol KOHuaed. Length of nine Heated. H-sb. Bequii fThujyl Alcohol. Amoimt of Estw Expressed asTOujyl Acetate. 

Paolini and Lomonaco find that the Italian oil contains 10 per cent, of a mixture of alpha and beto-thujone, which are identified by means of their semicarbazones, and about 48 per cent, of thujyl alcohol, which was separated in the form of its phthalic acid ester. Phellandrene was also isolated as its nitrosite, melting at 105, and cadinene was separated in the form of its hydrochloride. Thujyl alcohol is present in the free state, and also in the form of acetic, isovalerianic, and palmitic esters. At least two isomeric thujyl alcohols are present including the delta-variety. 

Artemisia arborescens yields about 0-6 per cent, of a deep blue essential oil of specific gravity about 0-946, acid value 9 8, and ester value 19 5. According to Jona it contains 13 9 per cent, of alcohols, of which borneol and thujyl alcohol have been identified, and about 13 per cent, of thujone. As constituents of the esters there were found formic, acetic, isovalerianic, pelargonic, palmitic, and stearic acids. 

---