Thionyl Chloride → 1-Benzyloxy-4-chloromethyl-2-trifluoromethyl-benzene

HRID 19940Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 19940
S(Cl)([Cl:3])=O.[CH2:5]([O:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19]O)=[CH:15][C:14]=1[C:21]([F:24])([F:23])[F:22])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1>ClCCl>[CH2:5]([O:12][C:13]1[CH:18]=[CH:17][C:16]([CH2:19][Cl:3])=[CH:15][C:14]=1[C:21]([F:24])([F:23])[F:22])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1

Komponenten

4

Edukt 2

HCID 24386Thionyl ChlorideHCID 16749447(4-Benzyloxy-3-trifluoromethylphenyl)methanol

Produkt 1

HCID 167490241-Benzyloxy-4-chloromethyl-2-trifluoromethyl-benzene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

Thionyl chloride (2.0 mL) was added to solution of (4-benzyloxy-3-trifluoromethyl-phenyl)-methanol (CAB03047, 3.10 g, 11.0 mmol) in dichloromethane (20 mL). The solution was stirred for 1 h at room temperature and concentrated under reduced pressure. Then diethyl ether (100 mL) and water (20 mL) were added. The organic layer was separated, washed with conc. sodium bicarbonate solution (10 mL), dried over sodium sulphate and concentrated under reduced pressure. The resulting oil solidified after a few minutes and was dried under high vacuum. Yield: 3.25 g (98%). 1H-NMR (400 MHz, CDCl3) δ=4.57 (s, 2H, —CH2Cl), 5.22 (s, 2H, —OCH2Ph), 7.02 (d, J=8.5 Hz, 1H), 7.31-7.52 (m, 6H), 7.63 (d, J=2.0 Hz, 1H). LRMS (FAB+): 91.1 (100), 265.2 (8), 300.1 (10, [M]+).

Aufarbeitung

  1. concentrationconcentrated under reduced pressure
  2. additionThen diethyl ether (100 mL) and water (20 mL) were added
  3. customThe organic layer was separated
  4. washwashed with conc. sodium bicarbonate solution (10 mL)
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated under reduced pressure
  7. waitThe resulting oil solidified after a few minutes
  8. customwas dried under high vacuum

Quellen und Nachweise

ORD-Eintrag
ord-9585e48e926c491089c838fb18e2c2bc
Quelldatensatz
uspto-grants-2010_06
Patentnummer
US07745472B2

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