Reaktion #507646

Reaktionsgleichung

sodium carbonate

1-(4-bromophenyl)-2-pyridine-2-yl-1H-benzimidazole

10-naphthalene-2-yl-anthracene-9-boronic acid

1,2-dimethoxyethane

→

yellowish white solids

Ausbeute 69.1%

1-[4-(10-naphthalene-2-yl-anthracene-9-yl)-phenyl]-2-methyl-1H-benzimidazole

Ausbeute 69.1%

Lösungsmittel

dichloro-methane

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturwith heating for 7 hours
2. 2
   SonstigeAfter completion of the reaction
3. 3
   Waschenwashed with water
4. 4
   Trocknendried with sodium sulfate
5. 5
   SonstigeRemoving the solvent
6. 6
   workup.DISTILLATIONby distillation

Vorschrift

Dissolving 1.2 g (3.4 mmol) of 1-(4-bromophenyl)-2-pyridine-2-yl-1H-benzimidazole, 1.2 g (3.4 mmol) of 10-naphthalene-2-yl-anthracene-9-boronic acid and 0.10 g of tetrakis (triphenylphosphine) palladium into 15 milliliter of 1,2-dimethoxyethane, adding 6 milliliter of 2.0M sodium carbonate aqueous solution, the resultant suspension was refluxed with heating for 7 hours. After completion of the reaction, the precipitated solids were dissolved into the dichloro-methane, washed with water and dried with sodium sulfate. Removing the solvent by distillation and by refining the resultant product with the use of a silicagel column chromatography (dichloro methane-ethyl acetate), 1.2 g of an yellowish white solids were obtained (yield: 61%). As a result of MS analysis, it was recognized that the yellowish white solids were identified as the aimed substance and that m/e=573 for molecular weight of 573.22.

Quelle