Propylenediamine → 1-Methyl-2-(3-phenylureido)ethylamine

HRID 2083081

Reaktionsgleichung

Reaktionsgleichung von HRID 2083081
[C:1]1([NH:7][C:8](=[O:12])OCC)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH2:13][CH2:14][CH:15]([NH2:17])[CH3:16]>>[CH3:16][CH:15]([NH2:17])[CH2:14][NH:13][C:8]([NH:7][C:1]1[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1)=[O:12]

Komponenten

3

Edukt 2

HCID 6567PropylenediamineHCID 7591Ethyl N-phenylcarbamate

Produkt 1

HCID 536666351-Methyl-2-(3-phenylureido)ethylamine

Reaktionsbedingungen

Temperatur
125 °C

Versuchsvorschrift

A mixture of ethyl phenylcarbamate (50 g.) and 1,2-diaminopropane (105 g.) is heated at 125° C. for 17 hours and cooled, and the excess of amine is removed by evaporation under reduced pressure. The residue is dissolved in ethyl acetate and the solution is washed with saturated brine, dried and evaporated to dryness. The residue is triturated with toluene and there is thus obtained as solid residue 1-methyl-2-(3-phenylureido)ethylamine, which is used without further purification.

Aufarbeitung

  1. temperaturecooled
  2. customthe excess of amine is removed by evaporation under reduced pressure
  3. dissolutionThe residue is dissolved in ethyl acetate
  4. washthe solution is washed with saturated brine
  5. customdried
  6. customevaporated to dryness
  7. customThe residue is triturated with toluene and there

Quellen und Nachweise

ORD-Eintrag
ord-d2c5a137ffe14eac994bb09f31d7b551
Quelldatensatz
uspto-grants-1978_04
Patentnummer
US04083992

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