238074

Acétate d′ammonium

ACS reagent, ≥97%

• Formule linéaire : CH₃CO₂NH₄
• Numéro CAS: 631-61-8
• Poids moléculaire : 77.08
• Numéro Beilstein : 4186741
• Numéro CE : 211-162-9
• Numéro MDL: MFCD00013066
• Code UNSPSC : 12352300
• eCl@ss : 39021908
• ID de substance PubChem : 329752506
• Nomenclature NACRES : NA.21

Propriétés

• Qualité: ACS reagent
• Pression de vapeur: <0.001 hPa
• Pureté: ≥97%
• Forme: powder; solid
• Impuretés: ≤0.005% insolubles
• Résidus de calcination: ≤0.01%
• pH: 6.7-7.3 (25 °C, 5%)
• Pf: 110-112 °C (dec.) (lit.)
• Traces d'anions: chloride (Cl^-): ≤5 ppm; nitrate (NO₃^-): ≤0.001%; sulfate (SO₄^2-): ≤0.001%
• Traces de cations: Fe: ≤5 ppm; heavy metals: ≤5 ppm
• Chaîne SMILES: N.CC(O)=O
• InChI: 1S/C2H4O2.H3N/c1-2(3)4;/h1H3,(H,3,4);1H3
• Clé InChI: USFZMSVCRYTOJT-UHFFFAOYSA-N

Description

Description générale

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.

Application

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.

Caractéristiques et avantages

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable