反应详情

A mixture of 2-bromomethyl-4,5-diphenyloxazole (10.00 g, 3 mmol), methyl 3-(3-hydroxyphenyl)propanoate (5.73 g, 3 mmol) potassium carbonate (4.83 g, 3.5 mmol) potassium iodide (catalytic amount) and acetonetrile (150 mL) was stirred at reflux temperature. After 30 minutes, the mixture was filtered, concentrated in vacuo and the residual oil chromatographed on a column of silica gel. Elution with a mixture of hexanes and diethyl ether (3:1) furnished methyl 3-[3-((4,5-diphenyl-2-oxazolyl)methoxy]phenyl]propanoate (10.34 g, 78%) as an oil. An analytical sample was prepared by subjecting a 4 g sample to chromatography under the conditions described above to furnish pure material as an oil.

1. temperatureat reflux temperature
2. filtrationthe mixture was filtered
3. concentrationconcentrated in vacuo
4. customthe residual oil chromatographed on a column of silica gel
5. washElution
6. additionwith a mixture of hexanes and diethyl ether (3:1)