Reaktion #490329

Reaktionsgleichung

bis(3-bromophenyl)diphenylsilane

2-(3-(dibenzo[b,c]furan-4-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

K2CO3

→

(3-bromophenyl)(3′-(dibenzo [b,d]furan-4-yl)-[1,1′-biphenyl]-3-yl)diphenylsilane

Ausbeute 60.1%

Lösungsmittel

toluene

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   Sonstigethe organic phase was isolated
2. 2
   Sonstigeevaporated to dryness
3. 3
   SonstigeThe residue was purified by column chromatography on silica gel with hexane

Vorschrift

A mixture solution of bis(3-bromophenyl)diphenylsilane (8.01 g, 16.21 mmol), 2-(3-(dibenzo[b,c]furan-4-yl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (3.00 g, 8.10 mmol), K2CO3 (2.240 g, 16.21 mmol), Pd(PPh3)4 (0.15 g, 0.162 mmol) in toluene (200 mL) and water (50 mL) was refluxed under nitrogen overnight. After cooling to room temperature, the organic phase was isolated and evaporated to dryness. The residue was purified by column chromatography on silica gel with hexane:DCM (9/1 to 3/1, v/v) as eluent to yield (3-bromophenyl)(3′-(dibenzo [b,d]furan-4-yl)-[1,1′-biphenyl]-3-yl)diphenylsilane (3.2 g, 60%) as a white solid.

Quelle