Acetic Anhydride → Cyanoacetyldibenzylurea

HRID 322570

Reaktionsgleichung

Reaktionsgleichung von HRID 322570
[CH2:1]([NH:8][C:9]([NH:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[C:19]([CH2:21][C:22](O)=[O:23])#[N:20].C(OC(=O)C)(=O)C>O>[C:19]([CH2:21][C:22]([N:8]([CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1)[C:9]([NH:11][CH2:12][C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=[O:10])=[O:23])#[N:20]

Komponenten

5

Edukt 3

HCID 7918Acetic AnhydrideHCID 9740Cyanoacetic acidHCID 72889Urea, N,N'-bis(phenylmethyl)-

Produkt 1

HCID 20642783Cyanoacetyldibenzylurea

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

36.0 g (0.15 mol) of dibenzylurea, 15.3 g (0.18 mol) of cyanoacetic acid and 30.6 g (0.3 mol) of acetic anhydride are stirred at 80-85° C. for 2 hours. After cooling, the reaction mixture is stirred into 600 ml of water and the resultant precipitate is filtered off with suction and then dried to constant weight.

Aufarbeitung

  1. temperatureAfter cooling
  2. filtrationthe resultant precipitate is filtered off with suction
  3. customdried to constant weight

Quellen und Nachweise

ORD-Eintrag
ord-c240c421fc754ef49d6d0795e73d913e
Quelldatensatz
uspto-grants-2001_04
Patentnummer
US06211270B1

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