Imidazole → 9-(Iodomethyl)nonadecane

HRID 628220

Reaktionsgleichung

Reaktionsgleichung von HRID 628220
[I:1]I.[CH2:3]([CH:11]([CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH3:23])[CH2:12]O)[CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N1C=CN=C1.[O-]S([O-])=O.[Na+].[Na+]>ClCCl>[I:1][CH2:12][CH:11]([CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10])[CH2:14][CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][CH3:23]

Komponenten

7

Versuchsvorschrift

Iodine (12.25 g, 48.3 mmol) was added to a solution of 2-octyl-1-dodecanol (12.42 g, 41.6 mmol), triphenylphosphine (13.17 g, 50.2 mmol), and imidazole (3.42 g, 50.2 mmol) in 80 mL dichloromethane at 0° C. After stirring for 30 minutes, the reaction mixture was allowed to warm to room temperature over 4 hours before 12 mL of saturated Na2SO3 (aq) was added. The organics were concentrated by evaporation and the mixture taken up in 500 mL pentane, washed three times with 200 mL water, and once with 150 mL brine. The mixture was then passed through a 3 cm silica gel plug, and dried over Na2SO4. The organics were concentrated by evaporation to give a colorless oil (15.78 g, yield 92.9%). 1H NMR (CDCl3 500 MHz): δ: 2.60 (d, J=5.0 Hz, 2H), 2.00 (t, J=5.0 Hz, 1H), 1.30-1.20 (b, 32H), 0.89 (t, J=7.5 Hz, 6H); MS (EI): m/z (%) 408.23 (100) [M+]. Elemental Analysis (calc. C, 58.81; H, 10.12): found C, 58.70; H, 9.97.

Aufarbeitung

  1. additionwas added
  2. concentrationThe organics were concentrated by evaporation
  3. washwashed three times with 200 mL water
  4. dry with materialdried over Na2SO4
  5. concentrationThe organics were concentrated by evaporation

Quellen und Nachweise

ORD-Eintrag
ord-3824af1174994d87889bc1a111ee3b6b
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09312492B2

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