4-Hydroxybenzaldehyde → 4,4'-(Propane-1,3-diylbis(oxy))dibenzaldehyde
反応式
[OH:1][C:2]1[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=1.Br[CH2:11][CH2:12][CH2:13]Br>C(=O)([O-])[O-].[K+].[K+].CN(C=O)C>[CH:6]([C:5]1[CH:8]=[CH:9][C:2]([O:1][CH2:11][CH2:12][CH2:13][O:1][C:2]2[CH:9]=[CH:8][C:5]([CH:6]=[O:7])=[CH:4][CH:3]=2)=[CH:3][CH:4]=1)=[O:7]参加物
5
実験手順
10.0 g of 4-hydroxybenzaldehyde and 8.3 g of 1,3-dibromopropane were reacted for 24 hours in 6.2 g of potassium carbonate solution in 100 ml of DMF under reflux. The reaction mixture was poured into cold distilled water to obtain a precipitate. After filtration and vacuum drying the precipitate, the resultant was recrystallized in ethanol to obtain the white product (XII-1). The product yield was 76%.
後処理
- temperatureunder reflux
- additionThe reaction mixture was poured
- distillationinto cold distilled water
- customto obtain a precipitate
- filtrationAfter filtration and vacuum
- customdrying the precipitate
- customthe resultant was recrystallized in ethanol
- customto obtain the white product (XII-1)
出典と根拠
- ORDレコード
- ord-db854b27d2914399bbe5f288a9a9adb4
- 出典データセット
- uspto-grants-1998_03
- 特許番号
- US05731599
反応ノート
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