Triethylamine → 2-Azidomethyl-4-bromo-thiazole

HRID 1725136Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1725136
[Br:1][C:2]1[N:3]=[C:4]([CH2:7]O)[S:5][CH:6]=1.FC(F)(F)S(Cl)(=O)=O.CCN(CC)CC.[N-:24]=[N+:25]=[N-:26].[Na+]>CN(C=O)C.O>[N:24]([CH2:7][C:4]1[S:5][CH:6]=[C:2]([Br:1])[N:3]=1)=[N+:25]=[N-:26]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 33557Sodium AzideHCID 79000Trifluoromethanesulfonyl chlorideHCID 11041630(4-Bromo-1,3-thiazol-2-yl)methanol

Produkt 1

HCID 579856112-Azidomethyl-4-bromo-thiazole

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

(4-Bromo-thiazol-2-yl)-methanol (1.1 g, 5.7 mmol) in DMF (15 ml) is treated at room temperature under nitrogen atmosphere with trifluoromethanesulfonyl chloride (0.61 ml, 1 equivalent), and Et3N (0.8 ml, 1 equivalent). The reaction mixture is stirred for 3 hours at room temperature before the addition of sodium azide (1.11 g, 3 equivalents), followed by overnight stirring at the same temperature. The reaction mixture is diluted with water and extracted with DCM and diethyl ether. The combined organic extracts are dried (MgSO4) and concentrated under reduced pressure to afford the crude product, which is used without purification in the next step.

Aufarbeitung

  1. extractionextracted with DCM and diethyl ether
  2. dry with materialThe combined organic extracts are dried (MgSO4)
  3. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-452b161976fa4417a28020452f8f4b34
Quelldatensatz
uspto-grants-2009_02
Patentnummer
US07488823B2

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