Reaktion #41964

Reaktionsgleichung

ethyl magnesium bromide

5-fluoroindanone

ammonium chloride

→

compound

Ausbeute 93.0%

1-Ethyl-5-fluoro-indan-1-ol

Ausbeute 93.0%

Lösungsmittel

ether

ether

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeQuench
2. 2
   Sonstigethe reaction
3. 3
   Waschenwash with water (2×)
4. 4
   Trocknendry over anhydrous sodium sulfate
5. 5
   Filtrationfilter
6. 6
   Einengenconcentrate

Vorschrift

Add ethyl magnesium bromide (1.3 ml, 3.90 mmol, 1.30 equivalents, 3.0 M in tetrahydrofuran) drop wise to a solution of 5-fluoroindanone (450 mg, 3.00 mmol) in. anhydrous ether (5 ml) under nitrogen at room temperature and stir overnight. Quench the reaction by drop wise addition of 10% aqueous ammonium chloride, dilute with ether, wash with water (2×), dry over anhydrous sodium sulfate, filter, and concentrate to obtain the'title compound (502 mg, 93%). NMR (400 MHz, CDCl3): δ 0.94 (t, 3H), 1.79 (m, 1H), 1.92 (m, 1H), 2.12 (m, 1H), 2.31 (m, 1H), 2.81 (m, 1H), 2,98 (m, 1H), 6.91 (m, 2H), 7.24 (m, 1H).

Quelle