299383

2,2,6-Trimethyl-4H-1,3-dioxin-4-on

technical grade

• Synonym(e): Diketenacetonaddukt
• Empirische Formel (Hill-System): C₇H₁₀O₃
• CAS-Nummer: 5394-63-8
• Molekulargewicht: 142.15
• Beilstein: 2408
• EG-Nummer: 226-403-3
• MDL-Nummer: MFCD00040468
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24858039

Eigenschaften

• Qualität: technical grade
• Brechungsindex: n20/D 1.460 (lit.)
• bp: ~275 °C (lit.); 65-67 °C/2 mmHg (lit.)
• mp (Schmelzpunkt): 12-13 °C (lit.)
• Löslichkeit: water: insoluble
• Dichte: 1.07 g/mL at 25 °C (lit.)
• SMILES String: CC1=CC(=O)OC(C)(C)O1
• InChI: 1S/C7H10O3/c1-5-4-6(8)10-7(2,3)9-5/h4H,1-3H3
• InChIKey: XFRBXZCBOYNMJP-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Flash pyrolysis of 2,2,6-trimethyl-4H-1,3-dioxin-4-one generates acetylketene. It is a diketene-acetone adduct.

Anwendung

2,2,6-trimethyl-4H-1,3-dioxin-4-one was used for acetoacetylation of aliphatic and aromatic alcohols, amines and thiols. It was also used in preparation of N-alkenyl acetoacetamides.

Sicherheitshinweise

• Piktogramme: GHS02,GHS07
• Signalwort: Danger
• H-Sätze: H225,H319
• P-Sätze: P210 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Flam. Liq. 2
• Lagerklassenschlüssel: 3 - Flammable liquids
• WGK: WGK 1
• Flammpunkt (°F): 57.2 °F - closed cup
• Flammpunkt (°C): 14 °C - closed cup
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter