Sodium Bicarbonate → HCID 21927829, Verbindung

HRID 585560Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 585560
[CH2:1]([N:8]1[CH2:13][CH2:12][N:11]([CH2:14][CH2:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])[CH2:10][CH2:9]1)[C:2]1[CH:7]=CC=CC=1.O=CCCC[NH:26][C:27](=[O:33])[O:28][C:29]([CH3:32])([CH3:31])[CH3:30].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].C(=O)(O)[O-].[Na+]>ClCCl.O>[C:29]([O:28][C:27]([NH:26][CH2:7][CH2:2][CH2:1][N:8]1[CH2:9][CH2:10][N:11]([CH2:14][CH2:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])[CH2:12][CH2:13]1)=[O:33])([CH3:32])([CH3:31])[CH3:30]

Komponenten

7

Edukt 4

HCID 516892Sodium BicarbonateHCID 5049666Sodium triacetoxyborohydrideHCID 15147569HCID 15147569, VerbindungHCID 15534785tert-Butyl (4-oxobutyl)carbamate

Produkt 1

HCID 21927829HCID 21927829, VerbindungAusbeute 78,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962WaterLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of methyl 4-(4-benzylpiperazin-1-yl)butanoate (500 mg, 2.68 mmoles) in dichloromethane (5 mL) was added tert-butyl 4-oxobutyl-carbamate (505 mg, 2.68 mmoles) and sodium triacetoxyborohydride (900 mg, 1.5 eq) and stirred 20 h. To the reaction mixture water was added followed by 1M aqueous sodium bicarbonate solution. The solution was extracted with ethyl acetate. The organics were evaporated to afford methyl 4-(4-{3-[(tert-butoxycarbonyl)amino]propyl}-piperazin-1-yl)butanoate (0.72 g, 75%). MS (ESI+) for m/z 358 (M+H)+.

Aufarbeitung

  1. extractionThe solution was extracted with ethyl acetate
  2. customThe organics were evaporated

Quellen und Nachweise

ORD-Eintrag
ord-ecc0896d043a4f8c9e23af2294b46cfe
Quelldatensatz
uspto-grants-2005_08
Patentnummer
US06933304B2

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