Hydrochloric Acid → (S)-1-(2-methoxy-1-phenylethyl)urea

HRID 588098Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 588098
[CH3:1][O:2][CH2:3][C@H:4]([C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1)[NH2:5].[O-:12][C:13]#[N:14].[K+].Cl>O>[CH3:1][O:2][CH2:3][C@@H:4]([NH:5][C:13]([NH2:14])=[O:12])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 11378442Potassium cyanateHCID 11768756(S)-2-Methoxy-1-phenylethanamine

Produkt 1

HCID 89524417(S)-1-(2-methoxy-1-phenylethyl)urea

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel2×

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

(S)-2-Methoxy-1-phenylethanamine (5.6 g, 37.0 mmol) and potassium cyanate (8.12 g, 100 mmol) were taken up in HCl (1 N, 40 mL, 40.0 mmol) and water (40 mL). The reaction mixture was heated to 100° C. for 3 h. Room temperature was attained, water was added, and the products extracted into EtOAc (×3) followed by 10% MeOH-DCM (×2). The combined organic extracts were washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. The residue was triturated with Et2O to give (S)-1-(2-methoxy-1-phenylethyl)urea. MS ESI calc'd. for C10H14N2O2 [M+1]+ 195. found 195.

Aufarbeitung

  1. customRoom temperature
  2. extractionthe products extracted into EtOAc (×3)
  3. washThe combined organic extracts were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe residue was triturated with Et2O

Quellen und Nachweise

ORD-Eintrag
ord-9a769e2fb9b3466ba609fcee5969f624
Quelldatensatz
uspto-grants-2016_01
Patentnummer
US09226922B2

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