反应详情

温度

50 °C

Sodium borohydride (96.7 g, 2.6 mol) was slowly added to a solution of ethyl 5-(3-chlorophenyl)isoxazole-3-carboxylate (214.5 g, 0.85 mol) in methanol (2.5 L) at 0° C. The reaction mixture was heated at 50° C. for 2 h and was quenched with EtOAc at r.t. Most of the solvent was distilled off and to the remaining crude was added EtOAc. The organic layer was washed with water, saturated brine and concentrated to give the title compound, which was used directly in the next step. MS (M++1)=210.

1. customwas quenched with EtOAc at r.t
2. distillationMost of the solvent was distilled off and to the remaining crude
3. additionwas added EtOAc
4. washThe organic layer was washed with water, saturated brine
5. concentrationconcentrated