3-Phenylquinoline-5-carbonitrile → 3-Phenyl-5-hydroxymethylquinoline
反応式
C1(C2C=NC3C=CC=C(C#N)C=3C=2)C=CC=CC=1.[C:19]1([C:25]2[CH:26]=[N:27][C:28]3[CH:29]=[CH:30][CH:31]=[C:32]([CH:35]=[O:36])[C:33]=3[CH:34]=2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>C(O)=O.[Ni]>[C:19]1([C:25]2[CH:26]=[N:27][C:28]3[C:33]([CH:34]=2)=[C:32]([CH2:35][OH:36])[CH:31]=[CH:30][CH:29]=3)[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1参加物
5
反応条件
- 温度
- 80 °C
実験手順
23 g (0.1 mol) of 3-phenylquinoline-5-carbonitrile (substance from Example 4) are admixed in 150 ml of formic acid with 10 g of Raney nickel. The mixture is stirred for about 5 hours at about 80° C. The slow formation of 3-phenylquinoline-5-carbaldehyde is observed by means of HPLC. In addition, 3-phenyl-5-hydroxymethylquinoline is formed as overreduced product. For the work-up, 300 ml of H2O are stirred in and the mixture is optionally extracted with 200 ml of methylene chloride. The methylene chloride phase is subsequently stirred at 40° C. (reflux) for 2 hours with 10 g of manganese dioxide. After filtration, the solution is evaporated and the residue is recrystallized from isopropanol.
出典と根拠
- ORDレコード
- ord-6a3a62b38270439298ccd4a951e2a739
- 出典データセット
- uspto-grants-1997_07
- 特許番号
- US05650514
反応ノート
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