Water → Phenyl 5-methylisoxazol-3-ylcarbamate

HRID 853279Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 853279
[NH2:1][C:2]1[CH:6]=[C:5]([CH3:7])[O:4][N:3]=1.[C:8](Cl)(=[O:16])[O:9][C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1.O>O1CCCC1.N1C=CC=CC=1>[CH3:7][C:5]1[O:4][N:3]=[C:2]([NH:1][C:8](=[O:16])[O:9][C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[CH:6]=1

Komponenten

6

Edukt 3

HCID 962WaterHCID 15891Phenyl chloroformateHCID 661723-Amino-5-methylisoxazole

Produkt 1

HCID 4519264Phenyl 5-methylisoxazol-3-ylcarbamateAusbeute 68 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 1049PyridineLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

3-Amino-5-methylisoxazole (1.00 g) purchased from Aldrich Co. was dissolved in tetrahydrofuran (20 ml) and pyridine (1.5 ml), and after cooling to 0° C. under a nitrogen atmosphere, phenyl chlorocarbonate (1.4 ml) was added and the mixture was stirred at room temperature for 2 hours. Water was added, extraction was performed twice with ethyl acetate, and then the organic layers were combined, washed with water and saturated brine in that order, dried over anhydrous sodium sulfate and concentrated under reduced pressure. The obtained residue was triturated with diethyl ether and n-hexane to obtain the title compound (1.54 g) (68% yield).

Aufarbeitung

  1. extractionextraction
  2. washwashed with water and saturated brine in that order
  3. dry with materialdried over anhydrous sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained residue was triturated with diethyl ether and n-hexane

Quellen und Nachweise

ORD-Eintrag
ord-aad17c9c199745dfa6517d4acb744da7
Quelldatensatz
uspto-grants-2007_08
Patentnummer
US07253286B2

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