2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE
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- 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
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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
- Löslichkeit
- Chloroform, Methanol
- Aggregatzustand
- Oil
- Farbe
- Clear Colourless
- Wichte
- 0.917
- Wasserlöslichkeit
- 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 Sicherheitserklärung
- Gefahreninformationscode (GHS)
| Bildanzeige (GHS) |
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| Alarmwort |
Warnung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H227 |
Combustible liquid |
Flammable liquids |
Category 4 |
Warnung |
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P210, P280, P370+P378, P403+P235,P501 |
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| Sicherheit |
| P403+P235 |
An einem gut belüfteten Ort aufbewahren. Kühl halten. |
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2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE 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.
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
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 Händler.
Global( 206)Lieferanten
| Firmenname |
Telefon |
E-Mail |
Land |
Produktkatalog |
Edge Rate |
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Dayang Chem (Hangzhou) Co.,Ltd.
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571-88938639 +8617705817739
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info@dycnchem.com |
CHINA |
52867 |
58 |
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Springchem New Material Technology Co.,Limited
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+86-021-62885108 +8613917661608
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info@spring-chem.com |
China |
2068 |
57 |
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ZHEJIANG ESTCHEM CO.,LTD
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15957180504
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sales@zjestchem.com |
China |
193 |
58 |
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Junwee Chemical co., Ltd.
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+86-571-85808636 +86-13958122542
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sales@junweechem.com |
China |
821 |
58 |
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Hebei Mojin Biotechnology Co., Ltd
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+8613288715578
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sales@hbmojin.com |
China |
12457 |
58 |
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Capot Chemical Co.,Ltd.
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571-85586718 +8613336195806
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sales@capotchem.com |
China |
29797 |
60 |
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Shanghai Daken Advanced Materials Co.,Ltd
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+86-371-66670886
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info@dakenam.com |
China |
15928 |
58 |
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Henan Tianfu Chemical Co.,Ltd.
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+86-0371-55170693 +86-19937530512
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info@tianfuchem.com |
China |
21695 |
55 |
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Hangzhou FandaChem Co.,Ltd.
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008657128800458; +8615858145714
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fandachem@gmail.com |
China |
9348 |
55 |
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Nanjing ChemLin Chemical Industry Co., Ltd.
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025-83697070
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product@chemlin.com.cn |
CHINA |
3012 |
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-Cyclopenten-1-one, 2,3,4,5-tetramethyl-
- 2,3,4,5-Tetramethyl-2-cyclopentenone,95%
- 2,3,4,5-tetramethyl-cyclopenten-2-one
- 54458-61-6
- 458-61-6
- Organic Building Blocks
- Ketones
- Carbonyl Compounds
- C9
- Building Blocks
- C9
- Carbonyl Compounds
- Ketones
- 000-111
