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Ethyl Acetate → (4-Triisopropylsilanylsulfanyl-phenyl)-methanol

HRID 2222941
ノート
印刷プレビュー

反応式

HRID 2222941 の反応式
[CH:1]([Si:4]([SH:11])([CH:8]([CH3:10])[CH3:9])[CH:5]([CH3:7])[CH3:6])([CH3:3])[CH3:2].[H-].[K+].Br[C:15]1[CH:22]=[CH:21][C:18]([CH2:19][OH:20])=[CH:17][CH:16]=1.C(OCC)(=O)C>O1CCCC1.C1C=CC=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.[Pd]>[CH:1]([Si:4]([S:11][C:15]1[CH:22]=[CH:21][C:18]([CH2:19][OH:20])=[CH:17][CH:16]=1)([CH:5]([CH3:7])[CH3:6])[CH:8]([CH3:10])[CH3:9])([CH3:3])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

8

反応物 4

HCID 8857Ethyl AcetateHCID 701194-Bromobenzyl alcoholHCID 82127Potassium hydrideHCID 3435097Tris(propan-2-yl)silanethiol

生成物 1

HCID 69114972(4-Triisopropylsilanylsulfanyl-phenyl)-methanol

試薬・触媒・溶媒 3

HCID 11979704
Tetrakis(triphenylphosphine)palladium
触媒
HCID 241Benzene溶媒
HCID 8028Tetrahydrofuran溶媒2 回

実験手順

A solution of triisopropylsilyl thiol (1.904 g, 10.0 mmol) in tetrahydrofuran (10 mL) was added to a stirred suspension of potassium hydride in tetrahydrofuran (10 mL). The resulting suspension was then added to a stirred solution of 4-bromobenzyl alcohol (1.87 g, 10 mmol) and tetrakis[triphenylphosphine]palladium(0) (0.350 g, 0.30 mmol) in benzene (25 mL). The reaction mixture was stirred at reflux for 2 h under a nitrogen atmosphere. Ethyl acetate (200 mL) was added and the solution washed with water. The organic phase was dried with magnesium sulfate, filtered, and concentrated by rotary evaporation. The crude product was purified by silica gel chromatography using a gradient of 0% to 2% ethyl acetate in dichloromethane to yield (4-triisopropylsilanylsulfanyl-phenyl)-methanol as a colorless oil.

後処理

  1. temperatureat reflux for 2 h under a nitrogen atmosphere
  2. washthe solution washed with water
  3. dry with materialThe organic phase was dried with magnesium sulfate
  4. filtrationfiltered
  5. concentrationconcentrated by rotary evaporation
  6. customThe crude product was purified by silica gel chromatography

出典と根拠

ORDレコード
ord-b0de1392b0b84d2185cf6f1d50ed2ab3
出典データセット
uspto-grants-2008_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US07371747B2

反応ノート

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