Triethylamine → HCID 21073545, Verbindung

HRID 1373586Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1373586
[CH3:1][C:2]1[C:3]2[CH:4]=[CH:5][C:6]([O:13][CH2:14][CH2:15][CH2:16][CH:17]=O)=[N:7][C:8]=2[NH:9][C:10](=[O:12])[CH:11]=1.Cl.[Cl:20][C:21]1[C:26]([Cl:27])=[CH:25][CH:24]=[CH:23][C:22]=1[N:28]1[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]1.C(N(CC)CC)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[Cl:20][C:21]1[C:26]([Cl:27])=[CH:25][CH:24]=[CH:23][C:22]=1[N:28]1[CH2:33][CH2:32][N:31]([CH2:17][CH2:16][CH2:15][CH2:14][O:13][C:6]2[N:7]=[C:8]3[C:3]([C:2]([CH3:1])=[CH:11][C:10](=[O:12])[NH:9]3)=[CH:4][CH:5]=2)[CH2:30][CH2:29]1

Komponenten

6

Edukt 4

HCID 8471TriethylamineHCID 5049666Sodium triacetoxyborohydrideHCID 116303721-(2,3-Dichlorophenyl)piperazine hydrochlorideHCID 21073358HCID 21073358, Verbindung

Produkt 1

HCID 21073545HCID 21073545, VerbindungAusbeute 63 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 111,2-DichloroethaneLösungsmittel

Versuchsvorschrift

The crude 4-(5-methyl-7-oxo-7,8-dihydro-[1,8]naphthyridin-2-yloxy)-butyraldehyde from the previous reaction in 1,2-dichloroethane (30 mL) is treated with 1-(2,3-dichlorophenyl)piperazine monohydrochloride (1.144 g, 4.20 mmol), followed by triethylamine (0.90 mL, 6.46 mmol) and sodium triacetoxyborohydride (0.955 g, 4.50 mmol). The cloudy yellow solution is stirred at room temperature for 1 hour. The mixture is quenched with H2O and saturated NaHCO3 solution and extracted with CH2Cl2. The organic extracts are washed with brine, dried over Na2SO4, filtered and concentrated under vacuum to a yellow oil. The oil is purified by column chromatography (5:95 methano/vethyl acetate) to afford the title compound (0.97 g, 63% over 2 steps) as a white solid. mp 181–182° C. 1H NMR (CDCl3, 400 MHz): δ 7.57 (br s, 1H), 7.40 (d, 1H), 7.18–7.12 (m, 2H), 7.00–6.94 (m, 1H), 6.38 (d, 1H), 4.23 (t, 2H), 3.16–3.00 (m, 5H), 2.77–2.68 (m, 4H), 2.75–2.56 (m, 1H), 2.52–2.36 (m, 3H), 1.86–1.75 (m, 2H), 1.75–1.64 (m, 2H), 1.28 (d, 3H). MS ES: m/z=460.70, 462.58.

Aufarbeitung

  1. customThe mixture is quenched with H2O and saturated NaHCO3 solution
  2. extractionextracted with CH2Cl2
  3. washThe organic extracts are washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated under vacuum to a yellow oil
  7. customThe oil is purified by column chromatography (5:95 methano/vethyl acetate)

Quellen und Nachweise

ORD-Eintrag
ord-5ac849bcc994440e983a10e211736fb1
Quelldatensatz
uspto-grants-2007_01
Patentnummer
US07160888B2

Notizen zur Reaktion

Wird geladen…