2-Methylbutylamine → 3-[(2-Methylbutyl)amino]propane-1-sulfonic acid

HRID 2219754

Reaktionsgleichung

Reaktionsgleichung von HRID 2219754
[CH3:1][CH:2]([CH2:5][CH3:6])[CH2:3][NH2:4].[CH2:7]1[CH2:13][S:10](=[O:12])(=[O:11])[O:9][CH2:8]1>O1CCCC1>[CH3:1][CH:2]([CH2:5][CH3:6])[CH2:3][NH:4][CH2:8][CH2:7][CH2:13][S:10]([OH:12])(=[O:11])=[O:9]

Komponenten

4

Edukt 2

HCID 72832-MethylbutylamineHCID 14264Propane sultone

Produkt 1

HCID 160358403-[(2-Methylbutyl)amino]propane-1-sulfonic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

To a solution of (+/−)-2-methylbutylamine (10 g, 115 mmol) in tetrahydrofuran (80 mL) was slowly added a solution of 1,3-propane sultone (13.5 g, 109 mmol) in THF (20 mL). The mixture was stirred at reflux for 2 hours. The reaction mixture was cooled to room temperature. The solid material was collected by filtration, washed with acetone (2×30 mL). The solid was suspended 95% Acetone/EtOH (200 mL). The suspension was stirred at room temperature for 5 minutes. The solid product was collected by filtration, and dried in a vacuum oven (50° C.), to afford compound DS (17.6 g, 78%). 1H NMR (D2O, 500 MHz) δ ppm 3.07 (t, 2H, J=7.8 Hz), 2.93 (m, 3H), 2.76 (m, 1H), 2.01 (m, 2H), 1.67 (m, 1H), 1.30 (m, 1H), 1.09 (m, 1H), 0.81 (d, 3H, J=6.8 Hz), 0.77 (t, 3H, J=6.8 Hz). 13C NMR (D2O, 125 MHz) δ ppm 53.48, 48.13, 46.92, 31.96, 26.38, 21.29, 16.11, 10.19. ES-MS 210 (M+1).

Aufarbeitung

  1. temperatureat reflux for 2 hours
  2. filtrationThe solid material was collected by filtration
  3. washwashed with acetone (2×30 mL)
  4. stirringThe suspension was stirred at room temperature for 5 minutes
  5. filtrationThe solid product was collected by filtration
  6. customdried in a vacuum oven (50° C.)
  7. customto afford compound DS (17.6 g, 78%)

Quellen und Nachweise

ORD-Eintrag
ord-9db9c5b8680b45898fafe988d7ac945a
Quelldatensatz
uspto-grants-2008_08
Patentnummer
US07414076B2

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