Verbenone

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Structural formula
Structural formulas of Verbenone
Structural formula without representation of the stereochemistry
General
Surname Verbenone
other names
  • 4,6,6-trimethyl-bicyclo [3.1.1] hept-3-en-2-one
  • 2-pinene-4-one
Molecular formula C 10 H 14 O
Brief description

light yellow liquid

External identifiers / databases
CAS number
  • 80-57-9 (undefined configuration)
  • 18309-32-5 ( D -Vbenon)
  • 1196-01-6 ( L -Vbenon)
EC number 201-292-4
ECHA InfoCard 100.001.176
PubChem 29025
ChemSpider 27001
Wikidata Q421151
properties
Molar mass 150.21 g mol −1
Physical state

liquid

density

0.98 g cm −3

Melting point

9.8 ° C

boiling point

227-228 ° C

solubility

practically insoluble in water

Refractive index

1.4993 (18 ° C)

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Verbenone refers to the two enantiomers (+) - verbenone and (-) - verbenone.

There are colorless liquids with the empirical formula C 10 H 14 O belonging to the monoterpene - ketones count. Both have a minty odor that increases when heated.

Isomers

Isomers of verbenone
Surname (+) - Verbenone (-) - Verbenone
other names D -Vbenone
(1 R , 5 R ) -4,6,6-trimethyl-bicyclo [3.1.1] hept-3-en-2-one
L -Vbenone
(1 S , 5 S ) -4,6,6-trimethyl-bicyclo [3.1.1] hept-3-en-2-one
levoverbenone
Structural formula Verbenone.svg
CAS number 18309-32-5 1196-01-6
80-57-9 (undefined)
EC number 242-195-7 214-807-2
201-292-4 (undefined)
ECHA info card 100.038.344 100.013.461
100.001.176 (undefined)
PubChem 65724 92874
29025 (undefined)
Wikidata Q55929359 Q6535827
Q421151 (undefined)

Occurrence and representation

rosemary

Verbenone occurs in the essential oils of rosemary ( Rosmarinus officinalis ) and the lemon bush (also scent verbena, lemon verbena, Aloysia triphylla ). It is together with the verbenol pheromone of the bark beetle . The attractant Verbenol leads to the "gathering" of the beetles on a tree; Finally, Verbenon drives the bark beetles to other trees that have not yet been infested. The ketone can be artificially made from pinene .

properties

Verbenone is flammable, the flash point is around 85 ° C. The substance is readily soluble in ethanol and other organic solvents, but almost not in water.

use

Verbenone serves as a fragrance and is also used as a remedy for the printer's bark beetle , where it acts as a repellent that repels the beetles.

Individual evidence

  1. a b Data sheet (1S) - (-) - Verbenone at Acros, accessed on February 20, 2010.
  2. a b Ingredients of essential oils: Verbenone .
  3. a b David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-518.
  4. Data sheet (1S) - (-) - Verbenone at Sigma-Aldrich , accessed on May 29, 2011 ( PDF ).
  5. Gabriela Lobinger: Development of new strategies in bark beetle management. ( Memento from September 27, 2007 in the Internet Archive ) In: Forstschutz aktuell No. 37, 2006, pp. 11-13.