Nitromethane → 3-Benzyloxy-trans-beta-nitrostyrene

HRID 640234

反応式

HRID 640234 の反応式
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([CH:14]=[CH:15][CH:16]=1)[CH:12]=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N+:17]([CH3:20])([O-:19])=[O:18].C([O-])(=O)C.[NH4+]>C(O)(=O)C>[CH2:1]([O:8][C:9]1[CH:16]=[CH:15][CH:14]=[C:11](/[CH:12]=[CH:20]/[N+:17]([O-:19])=[O:18])[CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

5

反応物 3

HCID 6375NitromethaneHCID 743423-BenzyloxybenzaldehydeHCID 517165Ammonium Acetate

生成物 1

HCID 53682823-Benzyloxy-trans-beta-nitrostyrene収率 89%

試薬・触媒・溶媒 1

HCID 176Acetic Acid溶媒

反応条件

温度
100 °C

実験手順

A mixture of 3-benzyloxy-benzaldehyde (5.16 g, 24.3 mmol) described in Manufacturing Example 61-1-1, nitromethane (2.16 mL, 48.6 mmol), ammonium acetate (2.81 g, 36.5 mmol) and acetic acid (50 mL) was stirred for 6 hours at 100° C. This mixture was cooled to room temperature, concentrated under a reduced pressure, and diluted with ethyl acetate. The organic layer was washed with water, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated under a reduced pressure, and the residue was purified by silica gel column chromatography (heptane:ethyl acetate=4:1-2:1-1:1) to obtain the title compound (5.50 g, 89%).

後処理

  1. temperatureThis mixture was cooled to room temperature
  2. concentrationconcentrated under a reduced pressure
  3. additiondiluted with ethyl acetate
  4. washThe organic layer was washed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationThe filtrate was concentrated under a reduced pressure
  8. customthe residue was purified by silica gel column chromatography (heptane:ethyl acetate=4:1-2:1-1:1)

出典と根拠

ORDレコード
ord-036b58907c2048cead18fdf5ebd8a17d
出典データセット
uspto-grants-2010_04
特許番号
US07691882B2

関連ノート

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