Reacción #48045

Ecuación de reacción

1-(4-bromophenyl)-cyclobutanol

(diethylamino)sulfur trifluoride

→

1-bromo-4-(1-fluoro-cyclobutyl)-benzene

Rendimiento 64.1%

Disolventes

DCM

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroat 0° C
2. 2
   Extracciónthe resulting mixture was extracted with DCM
3. 3
   LavadoThe combined organic extracts were washed with brine
4. 4
   Secadodried (MgSO4)
5. 5
   Filtraciónfiltered
6. 6
   Concentraciónconcentrated in vacuo
7. 7
   Otroto give a residue which
8. 8
   Otrowas purified by flash column chromatography (100% pentane)

Procedimiento

To a solution of 5.66 g of 1-(4-bromophenyl)-cyclobutanol (24.92 mmol, described in example S2-A) in 70 ml DCM were added 4.23 g of (diethylamino)sulfur trifluoride (95%, 24.92 mmol) at 0° C. The reaction mixture was stirred at 0° C. for 35 min, then sat. NaHCO3— solution was added and the resulting mixture was extracted with DCM. The combined organic extracts were washed with brine, dried (MgSO4), filtered, and concentrated in vacuo to give a residue which was purified by flash column chromatography (100% pentane) to give 1-bromo-4-(1-fluoro-cyclobutyl)-benzene (3.66 g, 64%) as a colorless liquid.

Fuente