反应详情

A solution of the nitrile (2 mL, 1.0 equiv) and HMPA (3.3 mL, 1.1 equiv) in THF (50 mL) was cooled to −78° C. under an atmosphere of argon. To this solution was added LDA (2 M in THF, 9.4 mL, 1.1 equiv). The dark red solution was allowed to stir for 15 min and then 1-chloromethylnaphthalene (3.3 g, 1.1 equiv) was added. The reaction was quenched after 1.5 hr by the addition of saturated aqueous NH4Cl. The mixture was diluted with EtOAc and water, the organic and aqueous phases separated, and the organic phase further washed with brine, dried over Na2SO4, filtered, and concentrated. The residue was purified by column chromatography (SiO2, 10% EtOAc in hexane) to give the desired product (2.06 g, 47%).

1. customThe reaction was quenched after 1.5 hr by the addition of saturated aqueous NH4Cl
2. additionThe mixture was diluted with EtOAc and water
3. customthe organic and aqueous phases separated
4. washthe organic phase further washed with brine
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated
8. customThe residue was purified by column chromatography (SiO2, 10% EtOAc in hexane)