Methanesulfonic Acid → 3-(Methanesulfonyl-methyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester

HRID 2403424Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2403424
[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([NH:13][CH3:14])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:22][S:23](O)(=[O:25])=[O:24]>ClCCl>[C:1]([O:5][C:6]([N:8]1[CH2:12][CH2:11][CH:10]([N:13]([S:23]([CH3:22])(=[O:25])=[O:24])[CH3:14])[CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

5

Edukt 3

HCID 6395Methanesulfonic AcidHCID 8471TriethylamineHCID 45089533tert-Butyl 3-(methylamino)pyrrolidine-1-carboxylate

Produkt 1

HCID 666176963-(Methanesulfonyl-methyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

To a solution of 3-methylamino-pyrrolidine-1-carboxylic acid tert-butyl ester (0.50 g) in dichloromethane (10 ml) was added triethylamine (0.38 ml) followed by methanesulfonic acid (0.21 ml). After stirring for 24 hours, the reaction mixture was diluted with dichloromethane, washed with sodium bicarbonate solution, dried (MgSO4) and the solvent removed in vacuo. The residue was purified by flash chromatography to yield 3-(methanesulfonyl-methyl-amino)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.52 g). Treatment of this compound with HCl in dichloromethane/methanol yielded N-Methyl-N-pyrrolidin-3-yl-methanesulfonamide hydrochloride salt (0.41 g).

Aufarbeitung

  1. washwashed with sodium bicarbonate solution
  2. dry with materialdried (MgSO4)
  3. customthe solvent removed in vacuo
  4. customThe residue was purified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-90c3dcb8887e43caadcff9ee20e74cb3
Quelldatensatz
uspto-grants-2014_08
Patentnummer
US08802670B2

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