تفاعل #730151

معادلة التفاعل

cesium carbonate

2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl

4-chlorobiphenyl

1,4-dioxane

→

title compound

المردود 38.0%

2-(Biphenyl-4-ylmethoxy)ethanol

المردود 38.0%

المذيبات

dichloromethane

water

water

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةAfter the reaction mixture was cooled at room temperature
2. 2
   ترشيحfollowed by filtration
3. 3
   غسيلThe separated organic layer was washed with an aqueous saturated sodium chloride solution
4. 4
   أخرىThe organic layer was separated
5. 5
   workup.DISTILLATIONthe solvent was distilled off under reduced pressure
6. 6
   أخرىThe residue was purified by silica gel column chromatography (heptane:ethyl acetate=1:1 NH silica gel)

الإجراء التجريبي

To a mixture of 4-chlorobiphenyl (15 mg, 79.5 μmol) and 1,4-dioxane (1.5 ml) were added water (0.15 ml), cesium carbonate (117 mg, 358 μmol), sodium (2-hydroxyethoxy)methyl trifluoroborate (19.7 mg, 119 mol), palladium (II) acetate (5.37 mg, 23.9 μmol) and 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (19.6 mg, 47.7 μmol). Then, the reaction mixture was stirred at 100° C. (external temperature) for 13 hours. After the reaction mixture was cooled at room temperature, water and dichloromethane were added to the mixture, followed by filtration using Celite. The separated organic layer was washed with an aqueous saturated sodium chloride solution. The organic layer was separated, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (heptane:ethyl acetate=1:1 NH silica gel) to obtain the title compound (6.8 mg, 30 μmol, 38%).

المصدر