Dimethylformamide → 2-Benzyloxy-5-ethoxybenzaldehyde

HRID 1294128ノート

反応式

HRID 1294128 の反応式
[CH2:1]([O:8][C:9]1[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][C:10]=1[CH:11]=[O:12])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:18](I)[CH3:19].C(=O)([O-])[O-].[K+].[K+].CN(C)C=O>O>[CH2:1]([O:8][C:9]1[CH:16]=[CH:15][C:14]([O:17][CH2:18][CH3:19])=[CH:13][C:10]=1[CH:11]=[O:12])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

参加物

6

反応物 4

HCID 6228DimethylformamideHCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 185361922-(Benzyloxy)-5-hydroxybenzaldehyde

生成物 1

HCID 178612542-Benzyloxy-5-ethoxybenzaldehyde収率 92.2%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

A mixture of 2-benzyloxy-5-hydroxybenzaldehyde (8.93 g), ethyl iodide (7.31 g), anhydrous potassium carbonate (5.40 g) and N,N-dimethylformamide (50 mL) was stirred at room temperature for 15 hrs. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated. The obtained residue was subjected to silica gel column chromatography to give 2-benzyloxy-5-ethoxybenzaldehyde as a colorless oil (9.25 g, 92%) from a fraction eluted with ethyl acetate-hexane (1:9, v/v).

後処理

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with saturated brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. concentrationconcentrated

出典と根拠

ORDレコード
ord-180de77d51c44996bba278b04d4b15e0
出典データセット
uspto-grants-2007_07
特許番号
US07238716B2

反応ノート

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