6-(3-(4-(2-Methoxyphenyl)-1-piperazinyl)-1-piperazinyl)-1-propenyl-3,4-dihydrocarbostyril → 2(1H)-Quinolinone, 3,4-dihydro-6-(3-(4-(2-methoxyphenyl)-1-piperazinyl)propyl)-
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[CH2:14][CH2:13][N:12]([CH2:15][CH:16]=[CH:17][C:18]2[CH:19]=[C:20]3[C:25](=[CH:26][CH:27]=2)[NH:24][C:23](=[O:28])[CH2:22][CH2:21]3)[CH2:11][CH2:10]1.[H][H]>CO.[Pt]>[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][CH2:17][C:18]2[CH:19]=[C:20]3[C:25](=[CH:26][CH:27]=2)[NH:24][C:23](=[O:28])[CH2:22][CH2:21]3)[CH2:11][CH2:10]1Participants
5
Reactant 2
Product 1
Reagents, catalysts & solvents 2
Procedure
2.3 Grams of 6-{3-[4-(2-methoxyphenyl)-1-piperazinyl]-1-propenyl}-3,4-dihydrocarbostyril and 0.2 g of platinum black were suspended in 100 ml of methanol and the suspension was catalytically hydrogenated under 2 to 4 atmospheric pressure of hydrogen gas at a normal temperature. After the catalyst was removed by filtration, the filtrate was dried under a reduced pressure. The residue was recrystallized from isopropanol-diisopropyl ether to obtain 6-{3-[4-(2-methoxyphenyl)-1-piperazinyl]propyl}-3,4-dihydrocarbostyril in colorless prism-like crystals. Yield: 1.3 g. Melting point: 145°-146° C.
Workup
- customAfter the catalyst was removed by filtration
- customthe filtrate was dried under a reduced pressure
- customThe residue was recrystallized from isopropanol-diisopropyl ether
Sources & evidence
- ORD record
- ord-fb083fc92f8f4a20912ccb02e9753df5
- Source dataset
- uspto-grants-1986_01
- Patent number
- US04567187
Reaction notes
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