Triphenylphosphine → HCID 67249460, compound
Reaction equation
[CH2:1]([N:8]1[CH2:13][CH2:12][NH:11][C@@H:10]([CH2:14][CH2:15][OH:16])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Br:17][C:18]1[CH:23]=[CH:22][C:21]([O:24][CH3:25])=[CH:20][C:19]=1O.N(C(OC(C)(C)C)=O)=NC(OC(C)(C)C)=O.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>O1CCCC1>[CH2:1]([N:8]1[CH2:13][CH2:12][NH:11][C@@H:10]([CH2:14][CH2:15][O:16][C:19]2[CH:20]=[C:21]([O:24][CH3:25])[CH:22]=[CH:23][C:18]=2[Br:17])[CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1Participants
6
Procedure
A round bottom flask was charged with (S)-2-(4-benzylpiperazin-2-yl)ethanol (1.0 g, 4.5 mmol), 2-bromo-5-methoxyphenol (1.0 g, 5.0 mmol), di-tert-butyl azodicarboxylate (1.57 g, 6.81 mmol), polymer-supported triphenylphosphine resin (4.354 g, 9.08 mmol) and tetrahydrofuran (30 mL). The reaction stirred for 16 hours. The resin was removed via filtration and the solution was concentrated. Purification via flash chromatography (0-30% methanol/dichloromethane) afforded the title compound.
Workup
- customThe resin was removed via filtration
- concentrationthe solution was concentrated
- customPurification via flash chromatography (0-30% methanol/dichloromethane)
Sources & evidence
- ORD record
- ord-f2b07ba9ae2f4f408845e2342972110a
- Source dataset
- uspto-grants-2013_10
- Patent number
- US08546377B2
Reaction notes
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