7-Methyl-3-methylenocta-1,6-dien Chemische Eigenschaften,Einsatz,Produktion Methoden
R-Sätze Betriebsanweisung:
R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Beschreibung
Myrcene has a pleasant odor. Prepared from linalool.
Chemische Eigenschaften
Myrcene has a pleasant, sweet, balsamic, plastic odor.
Occurrence
Reported found in Mircia acris D.C.; in the distillates from leaves of Rhus cotinus and Barosma venustum (52
and 43%, respectively); in lemongrass, cypress, artemisia; in the fruits of Phellodendron amurense (92%) and Phellodendron japonicum; in the oils of Picea balsamea, Tsuga canadenis, Abies balsamea, clary sage and others. Also reported in over 200 foods and
beverages including citrus peel oils and juices, apricot, sweet and sour cherry, berries, guava, pineapple, carrot, celery, potato, bell
pepper, black currants, anise, anise seed, cardamom, cinnamon, cassia, clove, capsicum varities, ginger, mentha oils, mace, parsley,
thyme, cheeses, cream, pork, hop oil, beer, white wine, rum, cocoa, coffee, tea, mango, tamarind, coriander, gin, sweet bay, prickly
pear, calamus, dill, lovage, caraway, buckwheat, corn, basil, fennel, kiwifruit, rosemary, myrtle berry, turmeric, lemon balm, sage,
pimento, angelica oil, Roman and German chamomile oil, eucalyptus and mastic gum oil
Verwenden
Myrcene is the suitable synthetic standard used in the identification of
E-myrcenol (2-methyl-6-methylene-
E-2,7-octadien-1-01) as a major hindgut constituent in Eurasian bark beetle
Ips duplicatus by GC-MS.
synthetische
From linalool
Definition
ChEBI: A monoterpene that is octa-1,6-diene bearing methylene and methyl substituents at positions 3 and 7 respectively.
Allgemeine Beschreibung
A yellow oily liquid with a pleasant odor. Flash point below 200°F. Insoluble in water and less dense than water.
Air & Water Reaktionen
Insoluble in water.
Reaktivität anzeigen
The unsaturated aliphatic hydrocarbons, such as MYRCENE, are generally much more reactive than the alkanes. Strong oxidizers may react vigorously with them. Reducing agents can react exothermically to release gaseous hydrogen. In the presence of various catalysts (such as acids) or initiators, compounds in this class can undergo very exothermic addition polymerization reactions. Many of these compounds undergo autoxidation upon exposure to the air to form explosive peroxides. Violent explosions have occurred at low temperatures in ammonia synthesis gas units. These explosions have been traced to the addition products of dienes and oxides of nitrogen, produced from the interaction of nitrogen oxide and oxygen [Bretherick, 1995].
Health Hazard
May be harmful by inhalation, ingestion or skin absorption.
Brandgefahr
Special Hazards of Combustion Products: Vapor may travel considerable distance to a source of ignition and flashback.
Sicherheitsprofil
Low toxicity by
ingestion and skin contact. Experimental
reproductive effects. A moderate skin and
eye irritant. A flammable liquid. When
heated to decomposition it emits acrid
smoke and irritating fumes.
Synthese
Myrcene occurs naturally in many organisms, but its extraction is uneconomic; it is produced industrially by pyrolysis of b-pinene. The fragmentation of linalool and linalyl acetate and the catalytic dimerization of isoprene have been described as laboratory synthesis methods of myrcene.
7-Methyl-3-methylenocta-1,6-dien Upstream-Materialien And Downstream Produkte
Upstream-Materialien
DL-Pin-2(3)-en
Linalool
Hops Oil
2,6-Octadiene, 1-iodo-3,7-dimethyl-, (Z)-
Benzene, [[(2E)-3,7-dimethyl-2,6-octadien-1-yl]thio]-
(2E)-3,7-Dimethyl-2,6-octadienyl methyl carbonate
p-Mentha-1,4(8)-dien
3,8-p-Menthadiene
Bromomethanesulphonylbromide
2,6-Dimethylhepta-1,5-dien
alpha-Terpinen
Linalyl acetate
Dipenten
(S)-p-Mentha-1,8-dien
Downstream Produkte
