Water → 1-{(3aS,7E,7aR)-7-(bromomethylene)-3a,4,5,6,7,7a-hexahydro-3a-methyl-1H-indene-3-yl}ethanone

HRID 1922626ノート

反応式

HRID 1922626 の反応式
Br[C@@:2]1([C:14](=[O:16])[CH3:15])[C@:10]2([CH3:11])[C@H:5](/[C:6](=[CH:12]/[Br:13])/[CH2:7][CH2:8][CH2:9]2)[CH2:4][CH2:3]1.[Br-].[Li+].C(=O)([O-])[O-].[Li+].[Li+].O>CN(C)C=O>[Br:13]/[CH:12]=[C:6]1\[CH2:7][CH2:8][CH2:9][C@@:10]2([CH3:11])[C@H:5]\1[CH2:4][CH:3]=[C:2]2[C:14](=[O:16])[CH3:15]

参加物

6

反応物 4

HCID 962WaterHCID 11125Lithium CarbonateHCID 82050Lithium BromideHCID 594565421-{(E,1R,3aS,7aS)-1-bromo-4-(bromomethylene)-octahydro-7a-methyl-1H-indene-1-yl}ethanone2 回

生成物 1

HCID 594565491-{(3aS,7E,7aR)-7-(bromomethylene)-3a,4,5,6,7,7a-hexahydro-3a-methyl-1H-indene-3-yl}ethanone収率 94%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
100 °C

実験手順

1-{(E,1R,3aS,7aS)-1-bromo-4-(bromomethylene)-octahydro-7a-methyl-1H-indene-1-yl}ethanone (Compound 12: 100 mg, 0.369 mmol) was dissolved in dimethylformamide (1.6 ml), and lithium bromide (35.8 mg, 0.412 mmol) and lithium carbonate (27.4 mg, 0.371 mmol) were added thereto. The resulting mixture was heated to 100° C. and stirred for 3 hours. After cooling the reaction solution to room temperature, water was added thereto, and the resulting mixture was extracted with diethyl ether. The organic layer was washed with saturated brine, dried over sodium sulfate, and evaporated to obtain a crude product. The product was purified by flash column chromatography to obtain 1-{(3aS,7E,7aR)-7-(bromomethylene)-3a,4,5,6,7,7a-hexahydro-3a-methyl-1H-indene-3-yl}ethanone (71.6 mg, 94.0%) as a white solid.

後処理

  1. temperatureAfter cooling the reaction solution to room temperature
  2. extractionthe resulting mixture was extracted with diethyl ether
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over sodium sulfate
  5. customevaporated
  6. customto obtain a crude product
  7. customThe product was purified by flash column chromatography

出典と根拠

ORDレコード
ord-c008845b63ed4517b566228e26c40fb7
出典データセット
uspto-grants-2012_05
特許番号
US08173824B2

反応ノート

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