反应详情

温度

90 °C

A mixture of {5′-chloro-2′-[(phenylmethyl)oxy]-2-biphenylyl}boronic acid (1.32 g, 3.9 mmol), ethyl 6-bromopicolinate (851 mg, 3.7 mmol), potassium carbonate (2.76 g, 20 mmol) and tetrakis(triphenylphosphine)palladium(0) (232 mg, 0.2 mmol) in 1:1 toluene/ethanol (25 ml) was stirred and heated at 90° C. under nitrogen for 1.5 hours. After cooling and dilution with diethyl ether/water the organic phase was separated, dried (magnesium sulphate) and evaporated. The residue was chromatographed on silica eluting with ethyl acetate/iso-hexane (3:17) to give 1.37 g of white solid. LC/MS t=3.76, [MH+] 444.3

1. temperatureAfter cooling
2. customdilution with diethyl ether/water the organic phase was separated
3. dry with materialdried (magnesium sulphate)
4. customevaporated
5. customThe residue was chromatographed on silica eluting with ethyl acetate/iso-hexane (3:17)