Cedrol
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Cedrol | ||||||||||||||||||
other names |
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Molecular formula | C 15 H 26 O | ||||||||||||||||||
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properties | |||||||||||||||||||
Molar mass | 222.37 g mol −1 | ||||||||||||||||||
Physical state |
firmly |
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Melting point |
86-87 ° C |
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boiling point |
273 ° C |
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solubility |
soluble in chloroform |
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safety instructions | |||||||||||||||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
The cedrol is a terpenoid natural products .
Occurrence
Cedrol is widespread and is found in the essential oil of pine-like plants ( Pinales ), especially in cypresses ( Cupressus ) and juniper ( Juniperus ). It has also been identified as an ingredient in Dost (e.g. Origanum smyrnaeum , also known as Origanum onites ).
Properties and structure
Cedrol is a sesquiterpene that is biosynthetically derived from ferns and is a common member of a group of terpenes , the cedran.
Basic structure | Application to the Cedrol | Explanation |
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Biosynthetically derived numbering |
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Azulene-derived numbering ( CAS ) |
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Numbering derived from undecane ( IUPAC ) |
Cedrol is a good way to show differences in the nomenclature of cedranas and natural products in general. In the present example there are three nomenclature systems. First the naming according to phytochemical principles : the name according to the original source (in this case the cedar) and the numbering according to the biochemical predecessor Farnese . In the second and third example, strict chemical procedures are demonstrated. It is the simplification of the molecule into a basic structure. This basic structure is the azulene for the purposes of the Chemical Abstracts Service , while the IUPAC regards the backbone of the cedrane as a carbon cycle with eleven atoms and describes it as undecane . What must be treated with great caution in this context is the numbering of the substituents, especially when comparing related or the same structures between the different nomenclatures. In the case of the Cedrane, it can be very interesting because even the IUPAC sometimes uses the trivial name "Cedrane" - but with the counting method derived from the Undecane model. In this context it should be noted that “Eudesmol” is sometimes mistakenly used as a synonym for “Cedrol”.
The chemical synthesis of cedrol is summarized several times in the literature and its main application is in aroma chemistry.
Biological importance
Cedrol is attracting interest because of its toxicity and possible carcinogenic properties.
Individual evidence
- ↑ Entry on CEDROL in the CosIng database of the EU Commission, accessed on June 9, 2020.
- ↑ a b The Merck Index. 12th edition. Merck Research Laboratories, 1996, ISBN 0-911910-12-3 , entry 1961.
- ↑ DR Lide (Ed.): Handbook of Chemistry and Physics. 78th edition. CRC Press, 1997-1998, ISBN 0-8493-0478-4 , entry 7570, pp. 3-208.
- ↑ a b data sheet (+) - Cedrol at Sigma-Aldrich , accessed on May 25, 2011 ( PDF ).
- ↑ JD Connolly, RA Hill (Ed.): Dictionary of Terpenoids Volume 1 Mono- and sesquiterpenoids. Chapman & Hall, 1991, ISBN 0-412-25770-X , entry SQ02555.
- ↑ Revised Section F: Natural Products and Related Compounds (IUPAC Recommendations 1999)
- ^ EJ Corey, XM Cheng: The Logic of Chemical Synthesis. Wiley, 1989, ISBN 0-471-50979-5 , pp. 4-5, 156-158.
- ↑ E. Breitmeier: Terpenes: flavors, fragrances, pharmaca, pheromones. Wiley-VCH, 2006, ISBN 3-527-31786-4 , pp. 46-47.
- ↑ JR Sabine: Exposure to an environment containing the aromatic red cedar, Juniperus virginiana: procarcinogenic, enzyme-inducing and insecticidal effects . In: Toxicology . tape 5 , no. 2 , 1975, p. 221-235 , PMID 174251 .