Ethylenediamine → N,N''-1,2-Ethanediylbis(urea)

HRID 374620

Reaktionsgleichung

Reaktionsgleichung von HRID 374620
[CH2:1]([NH2:4])[CH2:2][NH2:3].[N-:5]=[C:6]=[O:7].C([NH+](CC)CC)C.C[N:16]1CCC[C:17]1=[O:21]>>[CH2:1]([NH:4][C:17]([NH2:16])=[O:21])[CH2:2][NH:3][C:6]([NH2:5])=[O:7]

Komponenten

4

Edukt 3

HCID 3301EthylenediamineHCID 13387N-methyl-2-pyrrolidoneHCID 18997612Triethylammonium isocyanate

Produkt 1

HCID 74614N,N''-1,2-Ethanediylbis(urea)

Versuchsvorschrift

1.88 g of ethylenediamine (0.031 mol) were added dropwise at room temperature with stirring to 100 ml of a solution of 10 g of triethylammonium isocyanate (0.069 mol) in 100 ml of N-methylpyrrolidone, prepared according to the procedure described in example 1. After stirring at room temperature for 24 hours, the reaction mixture was heated to reflux for one hour, the solvent was evaporated and the residue was recrystallized from water. 3.4 g, i.e. 75% of theory, of ethylenediurea were obtained in this way.

Aufarbeitung

  1. customprepared
  2. temperaturethe reaction mixture was heated
  3. temperatureto reflux for one hour
  4. customthe solvent was evaporated
  5. customthe residue was recrystallized from water

Quellen und Nachweise

ORD-Eintrag
ord-e2b3a082b26046eb928f8349a1955fbc
Quelldatensatz
uspto-grants-1996_01
Patentnummer
US05481035

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