Reaktion #458491

Reaktionsgleichung

n-butyllithium

hexane

1-hexyne

bis(4-fluorophenyl)chlorochloromethylsilane

→

title compound

Chloromethyl[bis(4-fluorophenyl)](1-hexynyl)silane

Lösungsmittel

tetrahydrofuran

THF

Reaktionsbedingungen

Aufarbeitung

1. 1
   TemperaturThe solution was then cooled to -65° C.
2. 2
   TemperaturThe reaction was warmed to room temperature
3. 3
   Sonstigequenched by addition of saturated aqueous ammonium chloride
4. 4
   SonstigeThe solution was partitioned between water and ether
5. 5
   Sonstigethe organic layer was separated
6. 6
   Waschenwashed with brine
7. 7
   Trocknendried over magnesium sulfate
8. 8
   SonstigeRemoval of solvent

Vorschrift

A solution of 2.9 ml (0.024 mol) of 1-hexyne in 50 ml of tetrahydrofuran under nitrogen was cooled to -5° C. A solution of n-butyllithium in hexane (15 ml of 1.6 molar, 0.024 mol) was added dropwise, and the resulting solution was warmed to room temperature and stirred for 1.5 hours. The solution was then cooled to -65° C., and a solution of 6.0 g (0.0198 mol) of bis(4-fluorophenyl)chlorochloromethylsilane in 10 ml of THF was added dropwise. The reaction was warmed to room temperature and quenched by addition of saturated aqueous ammonium chloride. The solution was partitioned between water and ether, and the organic layer was separated, washed with brine and dried over magnesium sulfate. Removal of solvent gave the title compound as a clear colorless oil: nmr (CDCl3) 1.0 (3H, m), 1.5 (4H, m), 2.4 (2H, m), 3.2 (2H, s), 7.2 (4H, t, J= 9 Hz), 7.7 (4H, d of d, J=9, 6 Hz); ir (neat) 2180 cm-1.

Quelle