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2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE

2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Struktur
54458-61-6
CAS-Nr.
54458-61-6
Englisch Name:
2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE
Synonyma:
2-Cyclopenten-1-one, 2,3,4,5-tetramethyl-;2,3,4,5-TETRAMETHYLCYCLOPENT-2-ENONE;opentenone;Zinc02003168;Zinc02003169;Zinc02003171;Zinc02003172;2,3,4,5-TetramethyL;2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE;2,3,4,5-tetramethyl-2-cyclopentanone
CBNumber:
CB9325814
Summenformel:
C9H14O
Molgewicht:
138.21
MOL-Datei:
54458-61-6.mol

2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Eigenschaften

Siedepunkt:
100 °C30 mm Hg(lit.)
Dichte
0.927 g/mL at 20 °C(lit.)
Brechungsindex
n20/D 1.476
Flammpunkt:
164 °F
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
L?slichkeit
Chloroform, Methanol
Aggregatzustand
Oil
Farbe
Clear Colourless
Wichte
0.917
Wasserl?slichkeit
Not miscible with water.
BRN 
2324088
InChI
InChI=1S/C9H14O/c1-5-6(2)8(4)9(10)7(5)3/h5,7H,1-4H3
InChIKey
ARUAYSANQMCCEN-UHFFFAOYSA-N
SMILES
C1(=O)C(C)C(C)C(C)=C1C
CAS Datenbank
54458-61-6(CAS DataBase Reference)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
S-S?tze: 23-24/25-35-3/9/49-43-36-15
WGK Germany  3
HS Code  29142990
Speicherklasse 10 - Combustible liquids
Bildanzeige (GHS) Exclamation Mark (GHS07)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H227 Combustible liquid Flammable liquids Category 4 Warnung P210, P280, P370+P378, P403+P235,P501
Sicherheit
P403+P235 An einem gut belüfteten Ort aufbewahren. Kühl halten.

2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Chemische Eigenschaften,Einsatz,Produktion Methoden

S-S?tze Betriebsanweisung:

S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.

Verwenden

2,3,4,5-Tetramethyl-2-cyclopentenone can be used as organic synthesis intermediates and pharmaceutical intermediates, mainly used in laboratory research and development processes and chemical production processes.

Synthese

1.jpg
In a bottom round flask equipped with a mechanical stirrer, a dropping funnel and a reflux condenser was loaded 2000g (23.2 mol) of the starting ketone with 75% w/w of butylacetate as the solvent, 0.35 molar equivalents of anhydrous magnesium chloride and the aforementioned titanium catalytic solution containing 0.06 molar equivalents of the trichloropropoxytitanium complex. The resulting suspension was stirred vigorously and allowed to heat to 90°C. Then 2 molar equivalents of the acetaldehyde were added dropwise over 3h at 90°C. The reaction was continued for an additional hour and cooled to 40°C. The reaction mixture was hydrolysed with a 10% aqueous acetic acid solution and neutralised with a 20% aqueous potassium carbonate solution. The resulting organic phase was directly fractionated into a laboratory Sulzer packed column, to afford the title compound, as a mixture of isomers trans:cis = 85:15, in 27 % yield and the enone (II) (i.e. 4-methyl-4-hexen-3-one) in 31 % yield. mixture of isomers trans:cis = (B.p. = 70-80°C at P = 8 mbar); 4-methyl-4-hexen-3-one = (B.p. = 45-65°C at P = 8 mbar). 1H-NMR (isomer trans): 1.15 (d 3H); 1.19 (d 3H); 1.68 (s 3H); 1.88 (m 1H); 1.98 (s 3H); 2.25 (m 1H). 13C-NMR (isomer trans): 8.5; 14.6; 15.1 ; 17.7; 46.2; 48.4; 134.5; 171.6; 21 1.0.

2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 225)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Dayang Chem (Hangzhou) Co.,Ltd.
+86-0571-88938639 +8617705817739
info@dycnchem.com China 52705 58
Springchem New Material Technology Co.,Limited
+86-021-62885108 +8613917661608
info@spring-chem.com China 2068 57
ZHEJIANG ESTCHEM CO.,LTD
15957180504
sales@zjestchem.com China 193 58
Junwee Chemical co., Ltd.
+86-571-85808636 +86-13958122542
sales@junweechem.com China 823 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055
Sibel@chuanghaibio.com China 8738 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-86-13131129325 +8613131129325
sales1@chuanghaibio.com China 5228 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29640 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-2158073036
info@dakenam.com China 13901 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21587 55
Nanjing ChemLin Chemical Industry Co., Ltd.
025-83697070
product@chemlin.com.cn CHINA 3009 60

54458-61-6()Verwandte Suche:


  • 2,3,4,5-TETRAMETHYL-2-CYCLOPENTEN-1-ONE
  • 2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE
  • 2,3,4,5-Tetramethyl-2-cyclopentenone (mixture of cis- and trans- isomers),
  • 2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE, 95 %, MIXTURE OF CIS AND TRANS
  • 2,3,4,5-tetramethyl-2-cyclopentenone, cis + trans
  • 2,3,4,5-tetramethyl-2-cyclopentenone, mixture of cis and trans
  • 2,3,4,5-Tetramethylcyclopent-2-enone 95%
  • 2,3,4,5-tetramethyl-2-cyclopentanone (cis+trans)
  • 2,3,4,5-Tetramethylcyclopenta-2-ene-1-one
  • 2,3,4,5-Tetramethyl-2-cyclopentenone (mixture of cis- and trans- isomers), 97+%
  • Zinc02003168
  • Zinc02003169
  • Zinc02003171
  • Zinc02003172
  • trans-2,3,4,5-tetraMethylcyclopent-2-enone
  • 2,3,4,5-Tetramethyl-2-cyclopentenone, mixture of cis and trans 95%
  • 2,3,4,5-tetramethyl-2-cyclopentanone
  • 2,3,4,5-TetramethyL
  • opentenone
  • 2,3,4,5-Tetramethyl 2-cyclopentenone Cis + Trans--95%
  • 2,3,4,5-Tetramethylcyclopent-2-enone,mixture of cis and trans
  • 54458-61-6 2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE
  • 2,3,4,5-TETRAMETHYLCYCLOPENT-2-ENONE
  • 2,3,4,5-Tetramethyl-2-cyclopentenone,95%
  • 2,3,4,5-tetramethyl-cyclopenten-2-one
  • 2,3,4,5-tetramethylcyclopent-2-enone / TMPCO
  • 2,3,4,5-Tetramethyl-2-cyclopentenone, mixture of cis and trans
  • 2-Cyclopenten-1-one, 2,3,4,5-tetramethyl-
  • 54458-61-6
  • 458-61-6
  • Organic Building Blocks
  • Ketones
  • Carbonyl Compounds
  • C9
  • Building Blocks
  • C9
  • Carbonyl Compounds
  • Ketones
  • 000-111
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