Benzylacetoacetat

Bezeichnung:Benzylacetoacetat

Englisch Name:BENZYL ACETOACETATE

CBNumberCB8105196

SummenformelC11H12O3

Molgewicht192.21

Synonyma

Benzylacetoacetat

Benzylacetoacetat physikalisch-chemischer Eigenschaften

Siedepunkt	156-159 °C10 mm Hg(lit.)
Dichte	1.112 g/mL at 25 °C(lit.)
Brechungsindex	n20/D 1.512(lit.)
FEMA	2136 \| BENZYL ACETOACETATE
Flammpunkt	>230 °F
storage temp.	Store below +30°C.
Löslichkeit	It is soluble in alkali solutions.
pka	10.60±0.46(Predicted)
Aggregatzustand	clear liquid
Farbe	Colorless to Brown
Geruch (Odor)	at 100.00 %. sweet benzyl propionate and acetate floral fruity
Geruchsart	floral
JECFA Number	848
BRN	2049615
LogP	2.03
CAS Datenbank	5396-89-4(CAS DataBase Reference)
EPA chemische Informationen	Benzyl acetoacetate (5396-89-4)

Sicherheit

Gefahreninformationscode (GHS)

S-Sätze Betriebsanweisung:
S24/25:Berührung mit den Augen und der Haut vermeiden.
Chemische Eigenschaften
yellow viscous liquid
Chemische Eigenschaften
Benzyl acetoacetate has a sweet, floral, fresh, balsamic, fruity odor similar to that of ethyl acetate.
Occurrence
Reported found in litchi (Litchi sinensis Sonn.).
Verwenden
Benzyl acetoacetate (AAbenzyl) is chemical intermediate used for the syntheses of different organic chemicals Product Data Sheet
Verwenden
Benzyl acetoacetate is used as a Pharmaceutical and fine chemical intermediate.
synthetische
By heating ethyl acetoacetate and benzyl alcohol to 160°C.
Definition
ChEBI: Benzyl acetoacetate is a carboxylic ester. It is functionally related to a benzyl alcohol.
Allgemeine Beschreibung
Benzyl acetoacetate undergoes asymmetric bioreduction to form benzyl (S)-(+)-3-hydroxybutyrate in the presence of Candida schatavii strain MY 1831.
läuterung methode
Fractionate the ester and collect fractions with the expected physical properties. Otherwise add ca 10% by weight of benzyl alcohol and heat in an oil bath (160-170o, open vessel) for 30minutes during which time excess of benzyl alcohol will have distilled off, then fractionate. [Baker et al. J Org Chem 17 77 1952, Beilstein 6 IV 2480.]