4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-on

Bezeichnung:4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-on

CAS-Nr79-69-6

Englisch Name:IRONE

CBNumberCB9184594

SummenformelC14H22O

Molgewicht206.32

MOL-Datei79-69-6.mol

Synonyma

4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-on

4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-on physikalisch-chemischer Eigenschaften

Schmelzpunkt	<25 °C
Siedepunkt	285.19°C (rough estimate)
Dichte	0.934 g/mL at 20 °C(lit.)
Dampfdruck	0.4Pa at 20℃
FEMA	2597 \| ALPHA-IRONE
Brechungsindex	n20/D 1.492
Aggregatzustand	Liquid
Geruch (Odor)	at 10.00 % in dipropylene glycol. orris floral berry violet woody powdery
Geruchsart	floral
Merck	13,5111
JECFA Number	403
BRN	1343498
LogP	3.8-4 at 35℃ and pH7
EPA chemische Informationen	3-Buten-2-one, 4-(2,5,6,6-tetramethyl-2-cyclohexen-1-yl)- (79-69-6)

Sicherheit

S-Sätze:	23-24/25
WGK Germany	2
RTECS-Nr.	EN0335000

Gefahreninformationscode (GHS)

IRONE Chemische Eigenschaften,Einsatz,Produktion Methoden

S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
α-Irone has a characteristic orris and violet-like odor. The commercially prepared product corresponds generally to the α-isomer.
Chemische Eigenschaften
Yellowish liquid; Soluble in alcohol. A mixture of three isomers (α-, βand γ-irone).
Chemische Eigenschaften
α- Irone has a rich, floral and natural character and constitutes an important element in orris and violet compositions as well as being useful when an exotic nuance is required. α-Irone is extremely diffusive, and it gives volume and tenacity to compositions. In combination with α-irisone (1:20, respectively) gives a natural orris effect.
Occurrence
Reported found in orris root, raspberry and flowers of Pittosporum sp
Verwenden
Perfumery, violet odor. The α isomer is also used as a flavoring agent.
synthetische
By intramolecular thermal H-ene reaction of an allysilane.
Definition
ChEBI: A methyl ketone that is alpha-ionone in which a hydrogen at position 5 of the cyclohex-2-en-1-yl ring is substituted by a methyl group.
Taste threshold values
Taste characteristics at 10 ppm: woody, fruity, raspberry, orris, and berry with seedy nuances.
Allgemeine Beschreibung
Irone is a bioactive compound that is produced by an endophytic fungus in the rhizomes of Iris germanica.
Synthese
Alpha-n-Methy lionone is synthesized by condensation of Methylethyl ketone with Citral, and cyclization of the resulting Pseudomethylionone. Cyclization may be carried out with Boron trifluoride or other agent.
läuterung methode
If large amounts are available, then fractionate through a Podbielniak column (p 10) or an efficient spinning band column, but small amounts are distilled using a Kügelrohr apparatus. The 4-phenylsemicarbazone has m 174-175o (165-165.5o). [IR: Seidel & Ruzicka Helv Chim Acta 35 1826 1952, Naves Helv Chim Acta 31 1280 1948, Lecomte & Naves J Chim Phys 53 462 1956, Beilstein 7 IV 378.]

IRONE Upstream-Materialien And Downstream Produkte

4-(2,5,6,6-Tetramethylcyclohex-2-enyl)but-3-en-2-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

79-69-6, IRONE Verwandte Suche:

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