3-p-Cumenyl-2-methylpropionaldehyd

Bezeichnung:3-p-Cumenyl-2-methylpropionaldehyd

CAS-Nr103-95-7

Englisch Name:cyclamen aldehyde

CBNumberCB9246702

SummenformelC13H18O

Molgewicht190.28

MOL-Datei103-95-7.mol

Synonyma

3-p-Cumenyl-2-methylpropionaldehyd

3-p-Cumenyl-2-methylpropionaldehyd physikalisch-chemischer Eigenschaften

Siedepunkt	270 °C(lit.)
Dichte	0.95 g/mL at 25 °C(lit.)
Dampfdruck	0.3Pa at 20℃
FEMA	2743 \| 2-METHYL-3-(P-ISOPROPYLPHENYL)PROPIONALDEHYDE
Brechungsindex	n20/D 1.505(lit.)
Flammpunkt	228 °F
storage temp.	Inert atmosphere,Room Temperature
Löslichkeit	Chloroform (Slightly), Ethyl Acetate, Methanol (Slightly)
Aggregatzustand	Oil
Farbe	Colourless liquid.
Geruch (Odor)	Powerful floral-green with a characteristic cucumber-melon note used in floral types.
Geruchsart	floral
Wasserlöslichkeit	66mg/L at 20℃
JECFA Number	1465
Stabilität	Hygroscopic
LogP	3.4 at 35℃
CAS Datenbank	103-95-7(CAS DataBase Reference)
EPA chemische Informationen	Benzenepropanal, .alpha.-methyl-4-(1-methylethyl)- (103-95-7)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	38
S-Sätze:	26-36
WGK Germany	2
RTECS-Nr.	MW4900000
HS Code	29122990
Toxizität	The acute oral LD₅₀ value in rats was reported as 3*81 g/kg (Jenner, Hagan, Taylor, Cook & Fitzhugh, 1964).

Gefahreninformationscode (GHS)

cyclamen aldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R38:Reizt die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Beschreibung
2-Methyl-3-(p-isopropylphenyl) propionaldehyde has a strong, flowery odor. May be prepared by condensation of cuminic aldehyde and propionaldehyde followed by hydrogenation in the presence of a catalyst.
Chemische Eigenschaften
2-Methyl-3-(p-isopropylphenyl)-propionaldehyde has a strong, flowery odor
Chemische Eigenschaften
The commercially available racemate is a colorless to yellowish liquid with an intense floral odor reminiscent of Cyclamen europaeum (cyclamen, sowbread).
Production. Two main processes are used for the industrial synthesis of cyclamen aldehyde:
1) Alkaline condensation of 4-isopropylbenzaldehyde and propanal results, via the aldol, in the formation of 2-methyl-3-(4-isopropylphenyl)-2-propenal. The unsaturated aldehyde is hydrogenated selectively to the saturated aldehyde in the presence of potassium acetate and a suitable catalyst, such as palladium–alumina:
2) Friedel–Crafts reaction of isopropylbenzene and 2-methylpropenal diacetate (methacrolein diacetate) in the presence of titanium tetrachloride/boron trifluoride etherate gives cyclamen aldehyde enolacetate, which is hydrolyzed to aldehyde:
Uses. Cyclamen aldehyde is an important component for obtaining special blossomnotes in perfume compositions, particularly the cyclamen type. Because of its fresh, floral aspect, it is also used as the top note in many other blossomfragrances.
Occurrence
Reported found in nutmeg and starfruit.
Verwenden
Cyclamal, is an ingredient in perfume. It can also be used in the synthesis of Cyclamen Alcohol (C987655).
Verwenden
Cyclamen Aldehyde is a very powerful, floral, green note used in many perfumery applications to blend into fresh, floral, green or ozonic/marine accords. It is an ingredient with growing use and importance in helping to build replacement accords for materials disappearing from the Perfumers’ palette. Cyclamen has good overall stability except in extremes of pH. It has good tenacity and substantivity and represents very good value for money in new creations.In addition to its use in numerous perfume compositions, cyclamen aldehyde is an intermediate for the preparation of fungicides and fungistatic substances.
Definition
ChEBI: Xi-3-(4-Isopropylphenyl)-2-methylpropanal is a monoterpenoid.
synthetische
By condensation of cuminic aldehyde and propionaldehyde followed by hydrogenation in the presence of a catalyst
Sicherheitsprofil
Moderately toxic by ingestion. A human skin irritant. See also ALDEHYDES. When heated to decomposition it emits acrid smoke and irritating fumes.
Synthese
Cyclamen aldehyde is synthesized from Cuminaldehyde plus Ropionaldehyde by condensation followed by selective hydrogenation and finally dehydrogenation of the Cyclamen alcohol to aldehyde.

cyclamen aldehyde Upstream-Materialien And Downstream Produkte

3-p-Cumenyl-2-methylpropionaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

103-95-7, cyclamen aldehyde Verwandte Suche:

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