Isophorone oxide

Bezeichnung:Isophorone oxide

CAS-Nr10276-21-8

Englisch Name:Isophorone oxide

CBNumberCB7257935

SummenformelC9H14O2

Molgewicht154.21

MOL-Datei10276-21-8.mol

Isophorone oxide physikalisch-chemischer Eigenschaften

Siedepunkt	75-76 °C/6 mmHg (lit.)
Dichte	0.994 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.453(lit.)
Flammpunkt	182 °F
storage temp.	Sealed in dry,Room Temperature
Aggregatzustand	clear liquid
Farbe	Colorless to Light yellow to Light orange

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	20/21/22-40
S-Sätze:	23-36
RIDADR	UN 1993 / PGIII
WGK Germany	3
HS Code	29142990

Gefahreninformationscode (GHS)

Isophorone oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
R40:Verdacht auf krebserzeugende Wirkung.
S-Sätze Betriebsanweisung:
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Verwenden
Isophorone oxide could be rearranged to 3,5,5-trimethyl-1,2-cyclohexanedione and 2-formyl-2,4,4-trimethylcyclopentanone with high conversions and selectivities using zeolites and montmorillonite K10 as catalysts.
Synthese
In a three-necked flask equipped with a dropping funnel, a mechanical stirrer, and a thermometer, a solution of 55.2 g (0.4 mol) of isophorone and 115 ml (1.2 mol) of 30% aqueous hydrogen peroxide in 400 ml of methanol. After the contents of the flask have been cooled to 15 ℃ using an ice bath, 33 ml (0.2 mol) of 6N aqueous sodium hydroxide is added, dropwise and with stirring, over 1 hour. During the addition, the temperature of the reaction mixture is maintained at 15–20℃ with a bath of cold water. After the addition is complete, the resulting mixture is stirred for 3 hours as the reaction mixture temperature is maintained at 20–25℃. The reaction mixture is then poured into 500 ml. of water, and the resulting mixture is extracted with two 400-ml portions of ether. The combined extracts are washed with water and dried over anhydrous magnesium sulfate. After the bulk of the ether has been removed by distillation (or flash distillation) through a 30-cm. Vigreux column at atmospheric pressure, the residual liquid is distilled through the Vigreux column under reduced pressure. The yield of isophorone oxide is 43–44.5 g. (70–72%).
Einzelnachweise
[1] J. A. Elings, R. Sheldon, H. Lempers. “Zeolite-catalysed rearrangement of isophorone oxide.” Studies in Surface Science and Catalysis 15 1 (1997): 1165–1172.

Isophorone oxide Upstream-Materialien And Downstream Produkte

Isophorone oxide Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

10276-21-8, Isophorone oxide Verwandte Suche:

Send Inquriy