Pyridine → HCID 66779249, Verbindung
Reaktionsgleichung
[CH2:1]([O:5][C:6]1[CH:36]=[CH:35][C:9]2[C:10]3[C:27]4([O:32][CH2:31][C:30]([CH3:34])([CH3:33])[CH2:29][O:28]4)[C:11]=3[C:12]3[CH:19]=[CH:18][C:17]([O:20][CH2:21][CH2:22][O:23][CH2:24][CH2:25][OH:26])=[CH:16][C:13]=3[CH2:14][CH2:15][C:8]=2[CH:7]=1)[CH2:2][CH2:3][CH3:4].N1C=CC=CC=1.Cl[C:44]([O:46][C:47]1[CH:52]=[CH:51][C:50]([N+:53]([O-:55])=[O:54])=[CH:49][CH:48]=1)=[O:45]>C(Cl)Cl>[C:44](=[O:45])([O:46][C:47]1[CH:48]=[CH:49][C:50]([N+:53]([O-:55])=[O:54])=[CH:51][CH:52]=1)[O:26][CH2:25][CH2:24][O:23][CH2:22][CH2:21][O:20][C:17]1[CH:18]=[CH:19][C:12]2[C:11]3[C:27]4([O:32][CH2:31][C:30]([CH3:34])([CH3:33])[CH2:29][O:28]4)[C:10]=3[C:9]3[CH:35]=[CH:36][C:6]([O:5][CH2:1][CH2:2][CH2:3][CH3:4])=[CH:7][C:8]=3[CH2:15][CH2:14][C:13]=2[CH:16]=1Komponenten
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of alcohol 11 (0.439 g, 0.89 mmol) and pyridine (0.25 g, 3.21 mmol) in CH2Cl2 (approximately 5 mL) was added to a solution of 4-nitrophenyl chloroformate (0.30 g, 1.49 mmol) in CH2Cl2 (25 mL) at room temperature, and the reaction mixture was stirred for 20 minutes at room temperature. Solvent was evaporated under reduced pressure, and the residue was separated by chromatography (Hex:ExOAc 4:1+1.5% of Et3N) to provide 0.317 g (0.48 mmol 80%) of 12 as and 0.113 g (0.23 mmol) of starting 11. 1H NMR: 8.25 (d, J=8.8 Hz, 2H) 7.65 (dd, J=8.4, 2.0 Hz, 2H), 7.35, (d, J=9.2, 2H), 6.92-6.82 (m, 4H), 4.43 (t, J=4.4 Hz, 2H), 4.19 (t, J=6.4 Hz, 2H), 3.98 (t, J=4.4 Hz, 2 H), 3.92 (m, 7H), 3.22 (d, J=10.8 Hz, 2H), 2.43 (d, J=10.8 Hz, 2H), 1.75 (p, J=7.2 Hz, 2H), 1.51 (six, J=7.6 Hz, 2H), 1.21 (s, 3H), 1.19 (s, 3H), 0.98 (t, J=7.2 Hz, 3H); 13C NMR: 159.9, 159.2, 155.7, 152.7, 150.0 147.4, 145.6, 131.77, 131.63, 125.5, 124.6, 123.4, 122.0, 119.8, 119.1, 116.25, 116.19, 112.2, 112, 15, 84.1, 79.4, 70.0, 69.1, 68.4, 70.0, 67.8, 37.1, 31.5, 30.8, 22.87, 22.79, 19.5, 14.1.
Aufarbeitung
- customSolvent was evaporated under reduced pressure
- customthe residue was separated by chromatography (Hex:ExOAc 4:1+1.5% of Et3N)
Quellen und Nachweise
- ORD-Eintrag
- ord-121656ef26214b1d8c0b412d709bb400
- Quelldatensatz
- uspto-grants-2012_09
- Patentnummer
- US08258347B2
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