反应详情

Crude aryl bromide (14) (100 mg, 0.18 mmol), methyl acrylate (18 mg, 0.21 mmol), triethylamine (71 mg, 0.70 mmol), tri(o-toly)phosphine (5 mg, 0.016 mmol) and palladium(II) acetate (12 mg, 0.054 mmol) in acetonitrile (2 mL) was heated in a CEM Discover microwave for 45 minutes at 90° C. More tri(o-toly)phosphine (3 mg) and palladium(II) acetate (3 mg) were added and the reaction mixture retreated in the microwave for 20 minutes; palladium(II) acetate (2 mg) was then added and the process repeated for a further 25 minutes. The solvent was removed under a stream of nitrogen gas, water was added, and the organics extracted with EtOAc, washed with water, dried (Na2SO4) and the solvent concentrated in vacuo. The crude product was partially purified by column chromatography. Yield: 51 mg, 60%; LC-MS tr 1.82 min; HPLC Purity: 70%; MS (ES+) m/z 348 (M+H)

1. waitthe process repeated for a further 25 minutes
2. customThe solvent was removed under a stream of nitrogen gas, water
3. additionwas added
4. extractionthe organics extracted with EtOAc
5. washwashed with water
6. dry with materialdried (Na2SO4)
7. concentrationthe solvent concentrated in vacuo
8. customThe crude product was partially purified by column chromatography
9. waitLC-MS tr 1.82 min