反应详情

Under nitrogen atmosphere, (1-propargylpiperidin-4-yl)methanol (122 mg, 0.8 mmol) and diisopropylamine (370 mg, 0.56 mmol) were added to a degassed solution of methyl (Z)-[4-[3-(4-chlorophenyl)-3-(4-iodophenyl)allyloxy]-2-methylphenoxy]acetate (220 mg, 0.4 mmol; prepared as described in example 7) in tetrahydrofuran (15 mL). Subsequently, bis(triphenylphosphine)palladium(II) dichloride (30 mg, 0.042 mmol) and copper(I) iodide (15 mg, 0.075 mmol) were added; the reaction mixture was degassed again and then stirred under inert atmosphere at ambient temperature over night. The reaction mixture was diluted with ethyl acetate (20 mL) and filtered through a paddle of silica gel. The paddle was thoroughly washed with ethyl acetate (4×20 mL) and the combined filtrates were concentrated in vacuo. The residue was purified by column chromatography (silica gel Fluka 60, chloroform/methanol 95:5) yielding methyl (E)-[4-[3-(4-chlorophenyl)-3-[4-[3-[4-(hydroxymethyl)piperidin-1-yl]propynyl]phenyl]allyloxy]-2-methyl phenoxy]acetate.

1. customthe reaction mixture was degassed again
2. additionThe reaction mixture was diluted with ethyl acetate (20 mL)
3. filtrationfiltered through a paddle of silica gel
4. washThe paddle was thoroughly washed with ethyl acetate (4×20 mL)
5. concentrationthe combined filtrates were concentrated in vacuo
6. customThe residue was purified by column chromatography (silica gel Fluka 60, chloroform/methanol 95:5)