Triphenylarsine → (+/-)-methyl (8-acetyl-6-fluoro-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate
反応式
C1([As](C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.Br[C:21]1[C:22]2[CH:23]=[C:24]3[CH:33]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH2:32][CH2:31][N:25]3[C:26]=2[CH:27]=[C:28]([F:30])[CH:29]=1.[CH2:39]([O:41]C([Sn](CCCC)(CCCC)CCCC)=C)[CH3:40]>CN(C=O)C>[C:39]([C:21]1[C:22]2[CH:23]=[C:24]3[CH:33]([CH2:34][C:35]([O:37][CH3:38])=[O:36])[CH2:32][CH2:31][N:25]3[C:26]=2[CH:27]=[C:28]([F:30])[CH:29]=1)(=[O:41])[CH3:40]参加物
反応物 3
生成物 1
試薬・触媒・溶媒 1
反応条件
- 温度
- 90 °C
実験手順
A mixture of tris(dibenzyllideneacetone)dipalladium (281 mg, 0.3 mmol) and triphenyl arsine (367 mg, 1.2 mmol) in DMF (4 mL) was sonicated for 10 minutes and then degassed. A solution of (+/−)-methyl (8-bromo-6-fluoro-2,3-dihydro-1H-pyrrolo[1,2-a]indol-1-yl)acetate (Example 7, Step 8, 200 mg, 0.6 mmol) in 3 mL of DMF and 1-ethoxyvinyltri-n-butyltin (650 mg, 1.8 mmol) were added and the mixture was degassed. The reaction mixture was stirred at 90° C. for 12 hours and 1N HCl (4 mL) was added. The mixture was stirred at 90° C. for 12 hours and extracted with EtOAc. The combined organic layers were washed with 1N HCl, brine and water, dried over Na2SO4 and concentrated. The residue was purified by silica gel chromatography eluted with 20% EtOAc in hexanes to provide the title compound (70% pure) as a pale yellow oil used as such.
後処理
- customwas sonicated for 10 minutes
- customdegassed
- customthe mixture was degassed
- addition1N HCl (4 mL) was added
- stirringThe mixture was stirred at 90° C. for 12 hours
- extractionextracted with EtOAc
- washThe combined organic layers were washed with 1N HCl, brine and water
- dry with materialdried over Na2SO4
- concentrationconcentrated
- customThe residue was purified by silica gel chromatography
- washeluted with 20% EtOAc in hexanes
出典と根拠
- ORDレコード
- ord-8428b7c4eb874f2fa24d223c79334b9a
- 出典データセット
- uspto-grants-2006_12
- 特許番号
- US07144913B2
反応ノート
読み込み中…