Ethyl isocyanate → Ethyl-beta-ethylureido-beta-ethoxy acrylate

HRID 1449071Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1449071
[C:1]([O:5][O:6][C:7]([CH2:10][CH3:11])([NH2:9])[CH3:8])(=[O:4])[CH:2]=[CH2:3].[CH2:12]([N:14]=[C:15]=[O:16])[CH3:13]>C(#N)C>[C:1]([O:5][O:6][C:7]([CH2:10][CH3:11])([NH:9][C:15]([NH:14][CH2:12][CH3:13])=[O:16])[CH3:8])(=[O:4])[CH:2]=[CH2:3]

Komponenten

4

Edukt 2

HCID 8022Ethyl isocyanateHCID 86736826Ethylbeta-amino-beta-ethoxy acrylate

Produkt 1

HCID 86736827Ethyl-beta-ethylureido-beta-ethoxy acrylateAusbeute 60,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a solution of 15.9 g of ethyl-β-amino-β-ethoxy acrylate in 30 ml of acetonitrile was added 7.1 g of ethyl isocyanate, and the resulting mixture was allowed to stand at room temperature for one day and one night. The acetonitrile was distilled away under reduced pressure. To the residue was added 100 ml of ether and the system then dried over anhydrous sodium sulfate. The ether was distilled away and the residue was distilled under reduced pressure. Thus, 14 g of ethyl-β-ethylureido-β-ethoxy acrylate of a boiling point of 127° to 130° C. was obtained.

Aufarbeitung

  1. distillationThe acetonitrile was distilled away under reduced pressure
  2. additionTo the residue was added 100 ml of ether
  3. dry with materialthe system then dried over anhydrous sodium sulfate
  4. distillationThe ether was distilled away
  5. distillationthe residue was distilled under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-b7874db0e41f449080b95e1129020dc2
Quelldatensatz
uspto-grants-1980_02
Patentnummer
US04188489

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