Chlorotrimethylsilane → 2-bromo-1-(4-fluoro-5-methoxy-1-{[6-(trifluoromethyl)pyridin-3-yl]methyl}-2,3-dihydro-1H-inden-1-yl)ethanone

HRID 452560

反応式

HRID 452560 の反応式
[F:1][C:2]1[C:10]([O:11][CH3:12])=[CH:9][CH:8]=[C:7]2[C:3]=1[CH2:4][CH2:5][C:6]2([C:24](=[O:26])[CH3:25])[CH2:13][C:14]1[CH:15]=[N:16][C:17]([C:20]([F:23])([F:22])[F:21])=[CH:18][CH:19]=1.Cl[Si](C)(C)C.[Br-:32].[Br-].[Br-].C1([N+](C)(C)C)C=CC=CC=1.C1([N+](C)(C)C)C=CC=CC=1.C1([N+](C)(C)C)C=CC=CC=1>C1COCC1>[Br:32][CH2:25][C:24]([C:6]1([CH2:13][C:14]2[CH:15]=[N:16][C:17]([C:20]([F:22])([F:23])[F:21])=[CH:18][CH:19]=2)[C:7]2[C:3](=[C:2]([F:1])[C:10]([O:11][CH3:12])=[CH:9][CH:8]=2)[CH2:4][CH2:5]1)=[O:26]

参加物

5

反応条件

温度
-78 °C

実験手順

1-(4-fluoro-5-methoxy-1-{[6-(trifluoromethyl)pyridin-3-yl]methyl}-2,3-dihydro-1H-inden-1-yl)ethanone (600 mg, 1.6 mmol) was diluted in THF (3 ml). This solution was cooled to −78° C. and Sodium bis(hexamethylsilyl) amide (1.8 ml, 1.8 mmol) was added. After stirring for 10 min, chloro trimethylsilane (230 μl, 1.8 mmol) was added drop wise at −78° C., after which the reaction was warmed to 0° C., and left stirring for 30 min. To this solution was added Phenyltrimethylammonium tribromide (680 mg, 1.8 mmol) portion wise, and THF (1 mL) was added for solubility purposes. The reaction mixture was allowed to warm to room temp. Aqueous work up, extracted with dichloromethane, dried over magnesium sulfate, filtered, concentrated under reduced pressure furnished 2-bromo-1-(4-fluoro-5-methoxy-1-{[6-(trifluoromethyl)pyridin-3-yl]methyl}-2,3-dihydro-1H-inden-1-yl)ethanone. Used without further purification.

後処理

  1. temperatureafter which the reaction was warmed to 0° C.
  2. waitleft
  3. stirringstirring for 30 min
  4. temperatureto warm to room temp
  5. extractionAqueous work up, extracted with dichloromethane
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure

出典と根拠

ORDレコード
ord-c4e9f792eaf9460f947e7829531bd227
出典データセット
uspto-grants-2013_07
特許番号
US08492387B2

関連ノート

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