反应详情

温度

100 °C

To a stirred solution of citronellol (4.5 g, 28.8 mmol) and triethylamine (5.2 ml, 34.6 mmol, 1.2 eq) in dichloromethane (50 ml) cooled to 0° C. was added dropwise, a solution of methanesulfonyl chloride (2.46 ml, 28.8 mmol) in dichloromethane (50 ml). The solution was stirred for 1 hr. at 0° C. under nitrogen and then water was added. The dichloromethane layer was dried over magnesium sulfate after washing with saturated aqueous sodium chloride and then concentrated in vacuo to give an oil. 1H-NMR (300 MHZ) spectrum of the oil indicated the desired methanesulfonate ester. The methanesulfonate ester was added to a stirred mixture of 2,4,6-triiodophenol (13.6 g, 28.8 mmol) and potassium carbonate (4.0 g, 28.8 mmol) in dimethylformamide (50 ml). The mixture was heated to 100° C. for 30 minutes and cooled to room temperature. The crude product was isolated by partitioning the reaction mixture between water and dichloromethane. The organic layer was concentrated under vacuum to give an oil. The oil was purified by flashing through basic alumina with hexanes to give the desired product in 15% yield as a light-sensitive oil. Title Compound: 1H (300 MHz) and 13C (75 MHz) NMR spectra were consistent with the desired structure. Calculated for C16H21I3O: C, 31.50; H, 3.47; I, 62.41. Found: C, 31.71; H, 3.41; I, 62.30.

1. additionwas added dropwise
2. dry with materialThe dichloromethane layer was dried over magnesium sulfate
3. washafter washing with saturated aqueous sodium chloride
4. concentrationconcentrated in vacuo
5. customto give an oil
6. temperaturecooled to room temperature
7. customThe crude product was isolated
8. customby partitioning the reaction mixture between water and dichloromethane
9. concentrationThe organic layer was concentrated under vacuum
10. customto give an oil
11. customThe oil was purified