Cypress oil

Cypervitriol, m. (Old Chem.) blue vitriol. Cypressen-holz, n. cypress wood, -nuss, /, cypress cone. -61, n. cypress oil. cyprisch, a. Cyprian. — cyprischer Vitriol, blue vitriol, copper sulfate, cystenartig, a. cyst-like. 

Cypress oil is produced by steam distillation of terminal branches of Cupressus sempervirens L. (Cupressaceae). It is a liquid with a wood-like odor that has an ambergris note. 

Addition of thiophenol to cyclopropylallene 12, a less common method for the preparation of cist tram mixtures of divinylcyclopropanes, is used in the synthesis of karahanaenone850, an odoriferous constituent of Japanese hop and cypress oil. Karahanaenone is also prepared via a silyloxy-Cope rearrangement of 15 in 54% overall yield (starting with isobutyraldehyde and a mixture of cis- and /rpyridinium chlorochromate oxidation to give 14)851-852,... 

Ctmphene. 2,2-Dimethyl-3-methylenebicyclo-(12. l]beplane 2,2-dimethyl-3-methylenenorbornane 3,3-dimethyl-2-methylenenorcamphane. C,0HU mol wt 136.23. C 8 . 16%, H [1.84%. Occurs in many essential oils, such as tnpeatine (levo and dextro forms), in cypress oil (dextro form), in camphor oil from species of Lauraceae (dextro), in bergamot oil, in oil of citronella, neroli, ginger, valerian. Reviews on isolation, preparation and properties J. L. 

For products such as soaps and shampoos containing cypress oil extract, Hinoki-tiol has been developed. Hinokitiol has an antibacterial or bactericidal effect, but it is volatile and rapidly decomposes by oxidation. CyDs can stabilize Hinokitiol. 

CijHjfiO, Mr 222.37, mp. 86-87°C, [a]g +10.5° (CHCI3). C. constitutes the actual fragrance substance of cedarwood oil it is often found in cypress oils, sometimes in juniper species (red cedar). C. is the main component in the oil of Juniperus chinensis. To increase the valuable woody, balmy notes, the alcoholic components of cedarwo oil are esterified (e g-, 0-acetyl-C.=cedryl acetate). C. and cedrene-con-taining distillates serve as fixatives for soap perfumes, pine scents, and for perfumes with a woody note in general. 

Occurrence m-C. in the essential oils of leaves and fruits of the black currant(/(i7tes nigrum, Saxiftaga-ceae). p-C. is widely distributed in the plant kingdom and is isolated from, e.g., turpentine, cypress oil, cinnamon, eucalyptus, thyme oil and many others. C. is used as an aroma substance in cosmetics. 

CAS 79-92-5 EINECS/ELINCS 201-234-8 UN 9011 (DOT) FEMA2229 Synonyms Bicycle (2.2.1) heptane, 2,2-dimethyl-3-methylene- 2,2-Dimethyl-3-methylenebicyclo [2.2.1] heptane 2,2-Dimethyl-3-methylenenorbomane 3,3-Dimethyl-2-methylene norcamphane Definition Occurs in many essential oils such as turpentine, cypress oil, camphor oil from Lauraceae species, bergamot oil, etc. 

Cypress extract Cypress leaves extract. See Cypress (Cupressus sempervirens) extract Cypress oil. See Cypress (Cupressus sempervirens) oil Cyprex 65-W. SeeDodine Cypure . See Phosphine Cyracure UVR-6105] Cyracure UVR-6110. 

Adulteration is done by either turpentine oil or a and p pinene. Further, blending is done using 5 3 carene and cedrol from cedarwood Chinese type. AFNOR (1992) presents data in the standard NF T 75 -254. Using chiral GC as his method of analysis, Casabianca (1996) determined that the enantiomeric ratio of a-thujene in cypress oil was as follows ( / ) (+) a thujene (45%) (15) () a-thujene (55%). 

With regard to the cypress oil fractions with the highest boiling-point, which possess in a more pronounced degree the peculiar balsamic odour, it would appear that they contain, besides cadinene and cypress-camphor, a sesquiterpene alcohol, boiling at 136 to 138 at 5 mm. pressure. 

Solidago nemoralis is a plant which grows from Quebec to the North-West Territory, south to Florida and west to Texas and Arizona. A sample of the oil obtained from this species was examined by Schimmel Co. It was bright olive-green in colour, and had a peculiar odour, reminding somewhat of cypress oil. It bad a specific gravity 0 8799, optical rotation - 23 10, ester number 14 4, ester number after acetylation 38 2, and formed a cloudy solution in about seven or more volumes of 95 per cent, alcohol. 

McGilvray B. The birth of blue cypress oil. International Journal of Aromatherapy 9 12-14, 1998. 

---