3-Methylcyclohex-2-en-1-on

Bezeichnung:3-Methylcyclohex-2-en-1-on

CAS-Nr1193-18-6

Englisch Name:3-Methyl-2-cyclohexen-1-one

CBNumberCB8340010

SummenformelC7H10O

Molgewicht110.15

MOL-Datei1193-18-6.mol

Synonyma

3-Methylcyclohex-2-en-1-on

3-Methylcyclohex-2-en-1-on physikalisch-chemischer Eigenschaften

Schmelzpunkt	-21°C
Siedepunkt	199-200 °C(lit.)
Dichte	0.971 g/mL at 25 °C(lit.)
FEMA	3360 \| 3-METHYL-2-CYCLOHEXEN-1-ONE
Brechungsindex	n20/D 1.494(lit.)
Flammpunkt	155 °F
storage temp.	Inert atmosphere,Room Temperature
Aggregatzustand	Liquid
Wichte	0.971
Farbe	Clear very slightly yellow to brown
Geruch (Odor)	at 1.00 % in dipropylene glycol. nut caramel phenolic cherry
Geruchsart	nutty
Wasserlöslichkeit	insoluble
JECFA Number	1107
BRN	1560601
LogP	1.04
CAS Datenbank	1193-18-6(CAS DataBase Reference)
NIST chemische Informationen	2-Cyclohexen-1-one, 3-methyl-(1193-18-6)
EPA chemische Informationen	3-Methyl-2-cyclohexen-1-one (1193-18-6)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	22-36-20/21/22
S-Sätze:	36/37/39-26-24/25
WGK Germany	3
RTECS-Nr.	GW7340000
F	10
TSCA	Yes
HS Code	29142990

Gefahreninformationscode (GHS)

3-Methyl-2-cyclohexen-1-one Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36:Reizt die Augen.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Beschreibung
May be prepared by acid hydrolysis and decarboxylation of the corresponding 4-carbetoxy derivative; by oxidation of 1-methylcyclohex-l-ene with chromium trioxide in acetic acid; by cyclization of 3-carbetoxy-6-chlorohept-5-en-2-one with sulfuric acid.
Chemische Eigenschaften
CLEAR VERY SLIGHTLY YELLOW TO BROWN LIQUID
Chemische Eigenschaften
3-Methyl-2-cyclohexen-1-one is a nonaromatic cyclic ketone with a medicinal, phenolic, mild cherry aroma
Occurrence
Reported found in oil of Mentha pulegium, cocoa, coffee, filbert, sweet corn, dried bonito, katsuobushi, wild rice and clam. Also produced by some animals in vivo
Verwenden
3-Methyl-2-cyclohexen-1-one was used in the synthesis of 19-nor-1α, 25-dihydroxyvitamin D(3) derivatives. It was also used in sex pheromone of the Douglas-fir beetle. Used in nut flavor.
Verwenden
3-Methyl-2-cyclohexenone is an insect sex pheromone of the Douglas-fir beetle. It can be used as a starting material:
- In the total synthesis of (?)-ar-tenuifolene, a naturally occurring aromatic sesquiterpene.
- To synthesize an organic building block 2-trimethylsilyl-3-methyl-cyclohexenone.
- In the total synthesis of natural diterpenoids (+)-taiwaniaquinone H and (+)-dichroanone.
Definition
ChEBI: 3-Methyl-2-cyclohexen-1-one is a cyclic olefin.
synthetische
By acid hydrolysis and decarboxylation of the corresponding 4-carbetoxy derivative; by oxidation of 1-methylcyclohex-1-ene with chromium trioxide in acetic acid; by cyclization of 3-carbetoxy-6-chlorohept-5-en-2-one with sulfuric acid.
Aroma threshold values
Aroma characteristics at 2.0%: sweet, nutty, phenolic, walnut, fruity, almond and benzoin
Taste threshold values
Taste characteristics at 50 ppm: nutty, musty, phenolic and woody with grain-like nuances.
Synthesis Reference(s)
Journal of the American Chemical Society, 101, p. 494, 1979 DOI: 10.1021/ja00496a044
The Journal of Organic Chemistry, 42, p. 1349, 1977 DOI: 10.1021/jo00428a017
Tetrahedron Letters, 17, p. 3, 1976

3-Methyl-2-cyclohexen-1-one Upstream-Materialien And Downstream Produkte

3-Methylcyclohex-2-en-1-on Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

1193-18-6, 3-Methyl-2-cyclohexen-1-one Verwandte Suche:

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