HCID 14078470、化合物 → 4-Methoxybenzaldehyde
反応式
O[C:2]1[C:7](CC=C(C)C)=[C:6]([O:13][CH3:14])[CH:5]=[CH:4][C:3]=1[C:15](=[O:17])C>C(O)C>[CH:15](=[O:17])[C:3]1[CH:2]=[CH:7][C:6]([O:13][CH3:14])=[CH:5][CH:4]=1参加物
3
試薬・触媒・溶媒 1
実験手順
In 5 ml of ethanol were dissolved 0.48 g of 2'-hydroxy-4'-methoxy-3'-(3-methyl-2-butenyl)acetophenone obtained in production Example 9 and 0.35 ml of p-anisaldehyde. The solution was cooled to 0° C. and 7.5 ml of a saturated ethanol solution of potassium hydroxide was added to the solution, and the mixture was stirred at 0° C for 30 minutes and at room temperature for 4 days. After the reaction, 3N hydrochloric acid was added to the reaction liquid under cooling to gradually make the liquid acidic, and the formed precipitate was recovered by filtration and recrystallized from methanol to obtain 0.47 g (yield=64.7%) of 2'-hydroxy-4,4'-dimethoxy-3'-(3-methyl-2-butenyl)chalcone in the form of a yellow needle.
出典と根拠
- ORDレコード
- ord-49ce5b3fc9b541c1a0cbdb372179414d
- 出典データセット
- uspto-grants-1992_04
- 特許番号
- US05106871
反応ノート
読み込み中…