Toluene → HCID 11759644, 화합물

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A mixture of methyl 3-[2-chloro-4-(4-chlorophenyl)-5-oxazolyl]propionate (1.50 g), dihydroxyphenylborane (650 mg), sodium hydrogen carbonate (1.68 g), tetrakis(triphenylphosphine)palladium (250 mg), toluene (50 mL), ethanol (25 mL) and water (25 mL) was stirred under an argon atmosphere with heating under reflux for 12 hrs. The reaction mixture was concentrated and the residue was purified by silica gel column chromatography. Methyl 3-[4-(4-chlorophenyl)-2-phenyl-5-oxazolyl]propionate (1.50 g, 88%) was obtained as a yellow oil from a fraction eluted with hexane-ethyl acetate (6:1, volume ratio).

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