反应详情

温度

0 °C

A mixture of Mg turnings (195 mg, 8.02 g·atom) in dry Et2O (3.0 mL) was stirred at 0° C. under a nitrogen atmosphere then treated, dropwise, with a solution of iodomethane (0.58 mL, 9.31 mmol) in dry Et2O (7.5 mL). After 0.5 h a solution of aldehyde 5 (1.00 g, 3.12 mmol) in dry Et2O (7.5 mL) was added, dropwise, and the ensuing mixture then allowed to warm to 18° C. Stirring was continued at this temperature for a further 1 h then the reaction mixture was treated with NH4Cl (5 mL of a 20% w/v aqueous solution) and Et2O (10 mL). The separated organic phase was washed with H2O (1×5 mL) then dried (MgSO4), filtered and concentrated under reduced pressure to afford the title compound 6 (1.05 g, quant.) as a pale-yellow oil.

1. additionthen treated
2. temperatureto warm to 18° C
3. stirringStirring
4. washThe separated organic phase was washed with H2O (1×5 mL)
5. dry with materialthen dried (MgSO4)
6. filtrationfiltered
7. concentrationconcentrated under reduced pressure