Sodium Carbonate → 5-(3,4,5-Trimethoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1,3-dihydro-pyrrolo[2,3-b]pyridin-2-one

HRID 333162

反応式

HRID 333162 の反応式
Br[C:2]1[CH:3]=[C:4]2[CH2:10][C:9](=[O:11])[N:8]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:5]2=[N:6][CH:7]=1.[CH3:20][O:21][C:22]1[CH:23]=[C:24](B(O)O)[CH:25]=[C:26]([O:30][CH3:31])[C:27]=1[O:28][CH3:29].C([O-])([O-])=O.[Na+].[Na+]>CC#N.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:31][O:30][C:26]1[CH:25]=[C:24]([C:2]2[CH:3]=[C:4]3[CH2:10][C:9](=[O:11])[N:8]([CH2:12][O:13][CH2:14][CH2:15][Si:16]([CH3:19])([CH3:18])[CH3:17])[C:5]3=[N:6][CH:7]=2)[CH:23]=[C:22]([O:21][CH3:20])[C:27]=1[O:28][CH3:29]

参加物

6

反応物 3

HCID 10340Sodium CarbonateHCID 27343903,4,5-Trimethoxybenzeneboronic acidHCID 667795221229584-03-5

生成物 1

HCID 667788935-(3,4,5-Trimethoxy-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1,3-dihydro-pyrrolo[2,3-b]pyridin-2-one収率 60%

試薬・触媒・溶媒 2

HCID 178418476HCID 178418476、化合物触媒HCID 6342Acetonitrile溶媒

反応条件

温度
80 °C

実験手順

To a solution of 5-bromo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (0.85 g, 2.5 mmol) in CH3CN (5 mL) was added 3,4,5-trimethoxyphenylboronic acid (525 mg, 2.5 mmol), bis(triphenylphosphine)-palladium(II) dichloride (250 mg, 0.35 mmol), and 1 M Na2CO3 (5 mL). The resulting mixture was de-gassed with Ar for 10 min, after which it was heated at 80° C. for 2 hr. The reaction mixture was partitioned between EtOAc and H2O, and the organic layer was separated, filtered, and concentrated in vacuo. The residue was purified by silica gel chromatography eluting with 3:1 EtOAc:Hexanes to yield the title compound (640 mg, 60%). HPLC retention time: 2.51 minutes; MS ESI (m/z): 431.4 (M+1)+, calc. 430.

後処理

  1. customThe resulting mixture was de-gassed with Ar for 10 min
  2. customThe reaction mixture was partitioned between EtOAc and H2O
  3. customthe organic layer was separated
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel chromatography
  7. washeluting with 3:1 EtOAc

出典と根拠

ORDレコード
ord-c97489e2548c4c2b82a24c93a6183e68
出典データセット
uspto-grants-2014_11
特許番号
US08877772B2

関連ノート

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