Diethyl acetamide 2-(4-octanoyl phenyl)ethyl malonate → Diethyl acetamide 2(4-octyl phenyl)ethyl malonate
Reaction equation
[CH2:1]([CH:3]([CH2:7][CH3:8])[C:4]([NH2:6])=[O:5])[CH3:2].[C:9]([O:15][CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([C:24](=O)[CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[CH:20][CH:19]=1)(=[O:14])[CH2:10][C:11]([O-:13])=[O:12]>C(O)C.[C].[Pd]>[CH2:1]([CH:3]([CH2:7][CH3:8])[C:4]([NH2:6])=[O:5])[CH3:2].[C:9]([O:15][CH2:16][CH2:17][C:18]1[CH:23]=[CH:22][C:21]([CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[CH:20][CH:19]=1)(=[O:14])[CH2:10][C:11]([O-:13])=[O:12]Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
Diethyl acetamide-2-(4-octanoyl phenyl)ethyl malonate prepared in the step J (923 g) was stirred in ethanol (10 L) under atmosphere of hydrogen in the presence of 5% palladium carbon (138 g) overnight. The catalyst was removed by filtration, and the filtrate was concentrated. The residue was recrystallized from hexane to obtain diethyl acetamide-2(4-octyl phenyl)ethyl malonate (670 g) in the form of colorless crystal.
Workup
- customThe catalyst was removed by filtration
- concentrationthe filtrate was concentrated
- customThe residue was recrystallized from hexane
Sources & evidence
- ORD record
- ord-274954d32654499ebdf5cb5ad55ef665
- Source dataset
- uspto-grants-2001_09
- Patent number
- US06284915B1
Reaction notes
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