Water → 4-Phenylbicyclo[2.2.2]octane-1-carboxaldehyde

HRID 2353069ノート

反応式

HRID 2353069 の反応式
CON(C)[C:4]([C:6]12[CH2:13][CH2:12][C:9]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)([CH2:10][CH2:11]1)[CH2:8][CH2:7]2)=[O:5].[H-].[Al+3].[Li+].[H-].[H-].[H-].O.CCOC(C)=O>C1COCC1>[C:14]1([C:9]23[CH2:12][CH2:13][C:6]([CH:4]=[O:5])([CH2:11][CH2:10]2)[CH2:7][CH2:8]3)[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

参加物

6

反応物 4

HCID 962WaterHCID 8857Ethyl AcetateHCID 21226445Aluminium lithium hydrideHCID 59379799N-methoxy-N-methyl-1-phenylbicyclo[2.2.2]octane-4-carboxamide2 回

生成物 1

HCID 593797914-Phenylbicyclo[2.2.2]octane-1-carboxaldehyde

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

To an ice water cooled solution of N-methoxy-N-methyl-1-phenylbicyclo[2.2.2]octane-4-carboxamide (Intermediate 5; 8.49 g, 31.05 mmol) in anhydrous THF (100 mL) under nitrogen was added lithium aluminium hydride (1M solution in THF, 62 mL) dropwise and the reaction mixture was allowed to stir at 0° C. for 1 hr. Water (25 mL) was added cautiously followed by EtOAc (˜100 mL) and the mixture was filtered through a pad of celite washing with EtOAc (50 mL). The filtrate was washed with brine (150 mL), the organic phase separated, dried (MgSO4) and concentrated to leave the title compound as a colourless oil which formed a solid on standing (6.92 g, 32.28 mmol, 100%); 1H NMR (CDCl3) δ 1.72-1.83 (6H, m), 1.87-1.94 (6H, m), 7.17-7.22 (1H, m), 7.31-7.33 (4H, m), 9.53 (1H, s); GC-MS EI m/e M+ 214.

後処理

  1. filtrationthe mixture was filtered through a pad of celite
  2. washwashing with EtOAc (50 mL)
  3. washThe filtrate was washed with brine (150 mL)
  4. customthe organic phase separated
  5. dry with materialdried (MgSO4)
  6. concentrationconcentrated

出典と根拠

ORDレコード
ord-4e18f39858da492d90a4f4c61b42c2b9
出典データセット
uspto-grants-2010_07
特許番号
US07749997B2

反応ノート

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