Acetic Acid → 1,3-Dihydro-5-nitro-1'-((2-(trimethylsilyl)ethoxy)methyl)spiro(2H-indene-2,3'-(3H)pyrrolo(2,3-b)pyridin)-2'(1'H)-one

HRID 552555ノート

反応式

HRID 552555 の反応式
Br[CH2:2][C:3]1[CH:8]=[CH:7][C:6]([N+:9]([O-:11])=[O:10])=[CH:5][C:4]=1[CH2:12]Br.[CH3:14][Si:15]([CH3:31])([CH3:30])[CH2:16][CH2:17][O:18][CH2:19][N:20]1[C:24]2=[N:25][CH:26]=[CH:27][CH:28]=[C:23]2[CH2:22][C:21]1=[O:29].C(=O)([O-])[O-].[Cs+].[Cs+].C(O)(=O)C>CN(C=O)C>[N+:9]([C:6]1[CH:5]=[C:4]2[C:3](=[CH:8][CH:7]=1)[CH2:2][C:22]1([C:23]3[C:24](=[N:25][CH:26]=[CH:27][CH:28]=3)[N:20]([CH2:19][O:18][CH2:17][CH2:16][Si:15]([CH3:30])([CH3:14])[CH3:31])[C:21]1=[O:29])[CH2:12]2)([O-:11])=[O:10]

参加物

6

反応物 4

HCID 176Acetic AcidHCID 10796Cesium carbonateHCID 108523601,2-Bis(bromomethyl)-4-nitrobenzene2 回HCID 574588861-((2-(Trimethylsilyl)ethoxy)methyl)-1,3-dihydro-2H-pyrrolo(2,3-b)pyridin-2-one2 回

生成物 1

HCID 591667381,3-Dihydro-5-nitro-1'-((2-(trimethylsilyl)ethoxy)methyl)spiro(2H-indene-2,3'-(3H)pyrrolo(2,3-b)pyridin)-2'(1'H)-one

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

To a solution of 1,2-bis(bromomethyl)-4-nitrobenzene (40.9 g, 132 mmol, described in Intermediate 2) and 1-{[2-(trimethylsilyl)ethoxy]methyl}-1,3-dihydro-2H-pyrrolo[2,3-b]pyridin-2-one (31.5 g, 119 mmol, described in Intermediate 1) in DMF (2 L) was added cesium carbonate (129 g, 397 mmol), portionwise, over 5 min. After 18 h, acetic acid (7.6 mL) was added and the mixture was concentrated to a volume of about 500 mL, then partitioned between EtOAc (1.5 L) and H2O (1 L). The organic layer was washed with H2O (1 L), then brine (500 mL), then dried over Na2SO4, filtered, and concentrated in vacuo. The crude product was purified by silica gel chromatography, eluting with a gradient of hexane:EtOAc-100:0 to 0:100, to give the title compound. MS: m/z=412 (M+1).

後処理

  1. waitAfter 18 h
  2. concentrationthe mixture was concentrated to a volume of about 500 mL
  3. custompartitioned between EtOAc (1.5 L) and H2O (1 L)
  4. washThe organic layer was washed with H2O (1 L)
  5. dry with materialbrine (500 mL), then dried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe crude product was purified by silica gel chromatography
  9. washeluting with a gradient of hexane

出典と根拠

ORDレコード
ord-1d6c53e1e5f04bdab55748f5cd07b8ff
出典データセット
uspto-grants-2011_05
特許番号
US07951795B2

反応ノート

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