5-Aminoisoquinoline → 5-Amino-1,2,3,4-tetrahydroisoquinoline
反応式
[NH2:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH:4]=[CH:5][N:6]=[CH:7]2.[H][H]>C(O)(=O)C.[Pt]=O>[NH2:1][C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][NH:6][CH2:7]2参加物
5
実験手順
A solution of 5-aminoisoquinoline (20 g) in glacial acetic acid (500 ml) was shaken under hydrogen in the presence of a platinum oxide catalyst (2.0 g) at room temperature and approximately 345 kilopascals pressure until uptake of hydrogen stopped. The catalyst was removed by filtration and the filtrate was evaporated to a small volume under reduced pressure. Residual solvent was removed by co-evaporation with water, then isopropyl alcohol, and the resulting solid was recrystallized from isopropyl alcohol to give 5-amino-1,2,3,4-tetrahydroisoquinoline as a white solid, 19 g, m.p. 153°-154° C.
後処理
- customThe catalyst was removed by filtration
- customthe filtrate was evaporated to a small volume under reduced pressure
- customResidual solvent was removed by co-evaporation with water
- customisopropyl alcohol, and the resulting solid was recrystallized from isopropyl alcohol
出典と根拠
- ORDレコード
- ord-8186bc04f14c47bcbe302433515f8a22
- 出典データセット
- uspto-grants-1989_03
- 特許番号
- US04812573
反応ノート
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