238074

Ammoniumacetat

ACS reagent, ≥97%

• Lineare Formel: CH₃CO₂NH₄
• CAS-Nummer: 631-61-8
• Molekulargewicht: 77.08
• Beilstein: 4186741
• EG-Nummer: 211-162-9
• MDL-Nummer: MFCD00013066
• UNSPSC-Code: 12352300
• eCl@ss: 39021908
• PubChem Substanz-ID: 329752506
• NACRES: NA.21

Eigenschaften

• Qualität: ACS reagent
• Qualitätsniveau: 200
• Dampfdruck: <0.001 hPa
• Assay: ≥97%
• Form: powder; solid
• Verunreinigungen: ≤0.005% insolubles
• Glührückstand: ≤0.01%
• pH-Wert: 6.7-7.3 (25 °C, 5%)
• mp (Schmelzpunkt): 110-112 °C (dec.) (lit.)
• Anionenspuren: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.001%
• Kationenspuren: Fe: ≤5 ppm; heavy metals: ≤5 ppm
• SMILES String: N.CC(O)=O
• InChI: 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
• InChIKey: USFZMSVCRYTOJT-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

Ammonium acetate (NH₄CH₃CO₂, NH₄OAc) is a water-soluble, hygroscopic ammonium salt. It is an eco-friendly and inexpensive compound that can be prepared by reacting glacial acetic acid with ammonia or ammonium carbonate. It is used as a catalyst as well as a source of ammonia in organic synthesis.

Anwendung

Ammonium acetate can be used as a reactant as well as a catalyst in the synthesis of:      

• 1,3-oxazine derivatives by three-component condensation reaction with 2-naphthol and aromatic aldehydes.      
• Symmetrical terpyridine derivatives by treating with aromatic aldehydes and ethyl cyanoacetate.      
• Isoquinolines, furopyridines, and thienopyridines via Pd-catalyzed sequential coupling-imination-annulation reactions of ortho-bromoarylaldehydes and terminal alkynes.

It can also be used as a nitrogen source to synthesize benzoxazole derivatives via multicomponent condensation reaction with catechols, and various aldehydes in the presence of Fe(III)−salen complex as a catalyst.

Leistungsmerkmale und Vorteile

NH₄OAc is an eco-friendly, shelf-stable, and safe reagent.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable