反应 #3708509
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US06140345
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A stirred mixture of 6-fluoro-3-(4-piperidinyl)-1,2-benzisoxazole (3.0 g, 13.6 mmol), K2CO3 (2.45 g, 17.7 mmol), 2-methanesulfonyloxymethyl-1,4-benzodioxan (3.35 g, 13.7 mmole) in acetonitrile (100 ml) was heated at reflux for 12 hours. At the end of the reaction, the insolubles were filtered and rinsed with dichloromethane. The organic solution was concentrated. The crude oil was purified by flash chromatography on a silica gel column. The fractions containing the pure product were pooled and concentrated to a light yellow oil (3.94 g, 74%). Crystallization from ethanol and petroleum ether gave 2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]methyl-1,4-benzodioxan as off-white crystals, 2.22 g, m.p.=86-87° C. was heated at reflux for 12 hours At the end of the reaction the insolubles were filtered rinsed with dichloromethane The organic solution was concentrated The crude oil was purified by flash chromatography on a silica gel column The fractions containing the pure product concentrated to a light yellow oil (3.94 g, 74%) Crystallization from ethanol and petroleum ether
来源 ID: ord-7c459d0bce864d2fb399d88d19ec9937