反应详情

温度

80 °C

Methyl 4-bromo-2-methylbenzoate (1.0 g, 4.4 mmol) was dissolved in triethylamine (5 mL). To the mixture was added copper iodide (43 mg, 5 mol %), followed by PdCl2(PPh3)2 (157 mg, 5 mol %) and ethynylcyclopentane (0.75 mL, 5.3 mmol). The mixture was heated in a sealed pressure tube at 80° C. for 3 hours. After completion of the reaction, the triethylamine was evaporated and the residue was dissolved in EtOAc and filtered through Celite®. The organic layer was washed with water, brine, and dried (Na2SO4), then filtered and concentrated under vacuum. The residue was purified by column chromatography on sililca gel using EtOAc-hexane (0-100% gradient) as eluet to give the desired product.

1. customAfter completion of the reaction
2. customthe triethylamine was evaporated
3. dissolutionthe residue was dissolved in EtOAc
4. filtrationfiltered through Celite®
5. washThe organic layer was washed with water, brine
6. dry with materialdried (Na2SO4)
7. filtrationfiltered
8. concentrationconcentrated under vacuum
9. customThe residue was purified by column chromatography on sililca gel