Triethylamine → 7-[(tertButyldimethylsilyl)oxy]-6-methoxy-1-tetralone

HRID 1357875

反応式

HRID 1357875 の反応式
[OH:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][CH2:8][C:9]2=[O:12])=[CH:4][C:3]=1[O:13][CH3:14].CCN(CC)CC.[CH3:22][C:23]([Si:26](Cl)([CH3:28])[CH3:27])([CH3:25])[CH3:24]>C(Cl)Cl.CN(C1C=CN=CC=1)C>[C:23]([Si:26]([CH3:28])([CH3:27])[O:1][C:2]1[CH:11]=[C:10]2[C:5]([CH2:6][CH2:7][CH2:8][C:9]2=[O:12])=[CH:4][C:3]=1[O:13][CH3:14])([CH3:25])([CH3:24])[CH3:22]

参加物

6

反応物 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 3168407-Hydroxy-6-methoxy-1-tetralone

生成物 1

HCID 222447927-[(tertButyldimethylsilyl)oxy]-6-methoxy-1-tetralone収率 95.2%

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6344Dichloromethane溶媒

実験手順

To a well-stirred solution of 7-Hydroxy-6-methoxy-1-tetralone (80.0 mg, 0.42 mmol) in CH2Cl2, was added Et3N (47 mg, 0.46 mmol), followed by DMAP (5.1 mg, 0.042 mmol) and TBSCl (69 mg, 0.46 mmol) at 0° C. under dry nitogen. After 2 h (at rt), the mixture was partitioned between CH2Cl2 and water. The organic layer was dried over anhydrous sodium sulfate, and after filtration, the organic layer was concentrated in vacuo to provide a yellow oil. 7-[(tertButyldimethylsilyl)oxy]-6-methoxy-1-tetralone (122 mg, 0.40 mmol, 95%) was obtained following purification by column chromatography. 1H-NMR (CDCl3, 300 MHz) 0.15 (s, 6H), 0.99 (s, 9H),2.11 (m, 2H), 2.58 (t, J=6.1 Hz, 2H), 2.88 (t, J=6.0 Hz, 2H), 3.86 (s, 3H), 6.63 (s, 1H), 7.56 (s, 1H).

後処理

  1. customunder dry nitogen
  2. customthe mixture was partitioned between CH2Cl2 and water
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. filtrationafter filtration
  5. concentrationthe organic layer was concentrated in vacuo
  6. customto provide a yellow oil

出典と根拠

ORDレコード
ord-25ae7239fa944431863590942a22692e
出典データセット
uspto-grants-2003_07
特許番号
US06593374B2

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