Diisopropylethylamine → HCID 58497456, Verbindung

HRID 2175171Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2175171
[Cl:1][C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[C:6](Cl)[CH:5]=[C:4]([CH3:12])[N:3]=1.Cl.[CH2:14]([O:16][C:17](=[O:27])[CH2:18][C@@H:19]([NH2:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1)[CH3:15].CCN(C(C)C)C(C)C>CC(N(C)C)=O.C(OCC)(=O)C>[CH2:14]([O:16][C:17](=[O:27])[CH2:18][C@@H:19]([NH:26][C:6]1[CH:5]=[C:4]([CH3:12])[N:3]=[C:2]([Cl:1])[C:7]=1[N+:8]([O-:10])=[O:9])[C:20]1[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=1)[CH3:15]

Komponenten

6

Edukt 3

HCID 81531DiisopropylethylamineHCID 2734508ethyl (3R)-3-amino-3-phenylpropanoate hydrochlorideHCID 27848192,4-Dichloro-6-methyl-3-nitropyridine

Produkt 1

HCID 58497456HCID 58497456, VerbindungAusbeute 51,3 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8857Ethyl AcetateLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

To a solution of 2,4-dichloro-6-methyl-3-nitropyridine (900 mg, 4.35 mmol) in DMA (8 mL) were added (R)-3-amino-3-phenylpropionic acid ethyl ester HCl (799 mg, 3.48 mmol) and DIPEA (1.6 mL, 8.70 mmol). The reaction mixture was stirred at room temperature for 12 hours. The reaction was then diluted with ethyl acetate and washed with water twice. The organic phase was dried over Na2SO4 and concentrated to give yellow oil. The resulting oily residue was purified by silica gel preparative TLC using 99:1 CH2Cl2:MeOH as an eluent to afford 650 mg (51%) of the title compound as a light orange oil. LCMS, M++1, m/z: 364.15.

Aufarbeitung

  1. washwashed with water twice
  2. dry with materialThe organic phase was dried over Na2SO4
  3. concentrationconcentrated
  4. customto give yellow oil
  5. customThe resulting oily residue was purified by silica gel preparative TLC

Quellen und Nachweise

ORD-Eintrag
ord-9a91c91768f347868d3ed6c22ae77413
Quelldatensatz
uspto-grants-2015_06
Patentnummer
US09062056B2

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