Methanol → HCID 23500293, compound
Reaction equation
[NH2:1][CH2:2][CH2:3][NH:4][CH2:5][CH2:6][NH2:7].I[CH2:9][CH2:10][O:11][CH2:12][CH2:13][O:14][CH:15](O)[CH3:16].C[OH:19]>>[CH2:9]([OH:19])[CH2:10][O:11][CH2:12][CH2:13][O:14][CH2:15][CH2:16][NH:1][CH2:2][CH2:3][NH:4][CH2:5][CH2:6][NH2:7]Participants
4
Procedure
A mixture of diethylene triamine (460 ml, 4.3 mole) and (2-iodoethoxy) ethoxyethanol (7.30 g, 28 mmole) was stirred-at room temperature for 1 hour. The excess of diethylenetriamine was removed by distillation under vacuum. The residue was then treated with aqueous Satd NaOH, extracted with CH2Cl2, dried over MgSO4/Na2CO3, filtered, and concentrated to give a yellow oil. This was purificated by column chromatography on silica with CH3OH/NH40H (10:1), then (5:1) to give 1.43 g (33%) of the title compound as a pale yellow oil. The reaction is shown schematically as follows:
Workup
- customThe excess of diethylenetriamine was removed by distillation under vacuum
- additionThe residue was then treated with aqueous Satd NaOH
- extractionextracted with CH2Cl2
- dry with materialdried over MgSO4/Na2CO3
- filtrationfiltered
- concentrationconcentrated
- customto give a yellow oil
Sources & evidence
- ORD record
- ord-923c697953aa4f33842747924f803586
- Source dataset
- uspto-grants-2004_08
- Patent number
- US06774082B2
Reaction notes
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