Tri-o-tolylphosphine → (E)-N-(1H-indol-3-ylmethyl)-N-methyl-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylamide

HRID 1297445

Reaktionsgleichung

Reaktionsgleichung von HRID 1297445
Br[C:2]1[CH:3]=[C:4]2[C:9](=[N:10][CH:11]=1)[NH:8][C:7](=[O:12])[CH2:6][CH2:5]2.[NH:13]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:15]([CH2:22][N:23]([CH3:28])[C:24](=[O:27])[CH:25]=[CH2:26])=[CH:14]1.C1(C)C=CC=CC=1P(C1C=CC=CC=1C)C1C=CC=CC=1C.C(N(C(C)C)CC)(C)C>C(#N)CC.CC([O-])=O.CC([O-])=O.[Pd+2]>[NH:13]1[C:21]2[C:16](=[CH:17][CH:18]=[CH:19][CH:20]=2)[C:15]([CH2:22][N:23]([CH3:28])[C:24](=[O:27])/[CH:25]=[CH:26]/[C:2]2[CH:11]=[N:10][C:9]3[NH:8][C:7](=[O:12])[CH2:6][CH2:5][C:4]=3[CH:3]=2)=[CH:14]1

Komponenten

7

Edukt 4

HCID 80271Tri-o-tolylphosphineHCID 81531DiisopropylethylamineHCID 110963256-Bromo-3,4-dihydro-1,8-naphthyridin-2(1H)-oneHCID 22139147N-(1H-indol-3-ylmethyl)-N-methylacrylamide

Produkt 1

HCID 10316476(E)-N-(1H-indol-3-ylmethyl)-N-methyl-3-(7-oxo-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)acrylamideAusbeute 37 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 167845palladium(II) acetateKatalysatorHCID 7854PropionitrileLösungsmittel

Versuchsvorschrift

A solution of 6-bromo-3,4-dihydro-1H-1,8-naphthyridin-2-one (0.64 g, 2.80 mmole), N-(1H-indol-3-ylmethyl)-N-methylacrylamide (0.60 g, 2.80 mmole), Pd(OAc)2 (0.06 g, 0.28 mmole), tri-ortho-tolylphosphine (0.17 g, 0.56 mmole) and diisopropylethylamine (0.73 mL, 4.2 mmole) in propionitrile (50 mL) was deoxygenated, then was heated to reflux under N2 overnight. The dark mixture was filtered through a pad of celite®, and the filter pad was rinsed with acetonitrile (250 mL). The filtrate was concentrated in vacuo, and the residue was purified by flash chromatography on silica gel (10% MeOH/CHCl3). The title compound (0.37 g, 37%) was obtained as a light yellow solid after drying in vacuo: MS (ES) m/e 361 (M+H)+.

Aufarbeitung

  1. temperaturewas heated
  2. temperatureto reflux under N2 overnight
  3. filtrationThe dark mixture was filtered through a pad of celite®
  4. washthe filter pad was rinsed with acetonitrile (250 mL)
  5. concentrationThe filtrate was concentrated in vacuo
  6. customthe residue was purified by flash chromatography on silica gel (10% MeOH/CHCl3)

Quellen und Nachweise

ORD-Eintrag
ord-ef778c9df1e248c994694c622ece5519
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07250424B2

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