Reaktion #490335

Reaktionsgleichung

dibenzo[b,d]furan-4-ylboronic acid

bis(4-bromophenyl)diphenylsilane

K2CO3

→

(4-bromophenyl)(4-(dibenzo[b,c]furan-4-yl)phenyl)diphenylsilane

Ausbeute 44.0%

Lösungsmittel

toluene

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe organic phase was isolated
2. 2
   SonstigeUpon evaporation of the solvent
3. 3
   Sonstigethe residue was purified by column chromatography on silica gel with hexane:DCM (9:1

Vorschrift

A solution of dibenzo[b,d]furan-4-ylboronic acid (2.60 g, 12.26 mmol), with bis(4-bromophenyl)diphenylsilane (12.12 g, 24.53 mmol), Pd(PPh3)4 (0.283 g, 0.245 mmol) and K2CO3 (5.08 g, 36.8 mmol) in toluene (200 mL) and water (50 mL) was refluxed under nitrogen overnight. After cooling to room temperature, the organic phase was isolated. Upon evaporation of the solvent, the residue was purified by column chromatography on silica gel with hexane:DCM (9:1, v/v) as eluent to yield (4-bromophenyl)(4-(dibenzo[b,c]furan-4-yl)phenyl)diphenylsilane (3.14 g, 44%) as a white solid.

Quelle