Triethylamine → trans3-[(Methylsulfonyl)oxy]-4-(1,2,3-triazol-1-yl)-1-N-(tert-butoxy carbonyl) pyrrolidine

HRID 1742990Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1742990
[CH3:1][S:2](Cl)(=[O:4])=[O:3].[OH:6][C@H:7]1[C@H:11]([N:12]2[CH:16]=[CH:15][N:14]=[N:13]2)[CH2:10][N:9]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:8]1.C(N(CC)CC)C>C(Cl)Cl>[CH3:1][S:2]([O:6][C@H:7]1[C@H:11]([N:12]2[CH:16]=[CH:15][N:14]=[N:13]2)[CH2:10][N:9]([C:17]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])[CH2:8]1)(=[O:4])=[O:3]

Komponenten

5

Edukt 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 86748099Rac-tert-butyl (3r,4r)-3-hydroxy-4-(1h-1,2,3-triazol-1-yl)pyrrolidine-1-carboxylate

Produkt 1

HCID 86748100trans3-[(Methylsulfonyl)oxy]-4-(1,2,3-triazol-1-yl)-1-N-(tert-butoxy carbonyl) pyrrolidine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Methyl sulfonyl chloride (2.84 g, 24.8 mmole) was added slowly to an ice cooled solution of trans 3-hydroxy-4-(1,2,3-triazol-1-yl)-1-N-(tert.-butoxy carbonyl) pyrrolidine (3.16 g, 12.4 mmol) and triethylamine (4.36 ml, 31.3 mmol) in dry CH2Cl2 (10 ml). The reaction mixture was stirred under N2 at room temperature for 22 hrs and washed with saturated NaHCO3 and brine solution. The dichloromethane layer was dried over Na2SO4 and concentrated to give the title product. Yield 4.0 g (97%). 1H NMR (CDCl3) δ: 1.5 (S, 9H), 3.07 (s, 3H), 4.07 (m, 4H), 5.43 (m, 2H), 7.70 (S, 1H), 7.90 (S, 1H).

Aufarbeitung

  1. washwashed with saturated NaHCO3 and brine solution
  2. dry with materialThe dichloromethane layer was dried over Na2SO4
  3. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-68004e40eaa2442c98c1a9e96962043b
Quelldatensatz
uspto-grants-1994_08
Patentnummer
US05342846

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