Acetoacetamide Struktur

Acetoacetamid

Bezeichnung:Acetoacetamid

Englisch Name:Acetoacetamide

CBNumberCB1743902

SummenformelC4H7NO2

Molgewicht101.1

Synonyma

Acetoacetamid

Acetoacetamid physikalisch-chemischer Eigenschaften

Schmelzpunkt	53-56 °C(lit.)
Siedepunkt	271.0±23.0 °C(Predicted)
Dichte	1.093±0.06 g/cm3(Predicted)
Dampfdruck	0.93Pa at 20℃
Flammpunkt	>230 °F
storage temp.	Refrigerator
Löslichkeit	water: soluble1g/10 mL, clear, colorless
pka	12.38±0.46(Predicted)
Aggregatzustand	Crystalline Powder
Farbe	white to yellowish
Wasserlöslichkeit	1000g/L at 20℃
BRN	1560550
InChIKey	GCPWJFKTWGFEHH-UHFFFAOYSA-N
LogP	-1.4 at 23℃
CAS Datenbank	5977-14-0(CAS DataBase Reference)
EPA chemische Informationen	Butanamide, 3-oxo- (5977-14-0)

Sicherheit

WGK Germany	1
RTECS-Nr.	EJ3667188

Gefahreninformationscode (GHS)

Chemische Eigenschaften
White to yellowish crystals
Verwenden
Acetoacetamide is used as intermediate for different organic syntheses, mainly organic dyestuffs. Product Data Sheet
Verwenden
Acetoacetamide is a β-keto amide commonly used in building heterocyclic systems. It can be used in synthesizing various N-substituted acetoacetamides, that are primary precursors for several organic dyes and pigments.
Verwenden
Acetoacetamide was used in a study to assess the stability of artificial sweeteners- aspartame, acesulfame-K and binary sweetener blend of aspartame x acesulfame-K during storage. Acetoacetamide was also used in analysis of multiple sweeteners and their degradation products in lassi by HPLC.
Definition
ChEBI: Acetoacetamide is a monocarboxylic acid amide of acetoacetic acid. It is functionally related to an acetoacetic acid.
Allgemeine Beschreibung
Acetoacetamide is a degradation product of acesulfame-K, sweetener. Acetoacetamide undergoes alkaline hydrolysis to form salt of acetoacetic acid.
Flammability and Explosibility
Not classified
läuterung methode
Recrystallise the amide from CHCl3, or Me2CO/pet ether. It also crystallises from pyridine with 4mols of solvent. It is slightly soluble in H2O, EtOH and AcOH but is insoluble in Et2O. The phenylhydrazone has m 128o. [Kato Chem Pharm Bull Jpn 15 921 923 1967, Claisen & Meyer Chem Ber 35 583 1902, Beilstein 3 H 659, 3 I 231, 3 III 1204, 3 IV 1545.]