Tetraethylene Glycol → HCID 18374579, compound
Reaction equation
[Na].[CH2:2]([OH:14])[CH2:3][O:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH2:12][OH:13].[C:15]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])(=[O:18])[CH:16]=[CH2:17].[Cl-].[NH4+]>O1CCCC1>[C:20]([O:19][C:15]([CH2:16][CH2:17][O:13][CH2:12][CH2:11][O:10][CH2:9][CH2:8][O:7][CH2:6][CH2:5][O:4][CH2:3][CH2:2][O:14][CH2:17][CH2:16][C:15]([O:19][C:20]([CH3:23])([CH3:22])[CH3:21])=[O:18])=[O:18])([CH3:23])([CH3:22])[CH3:21]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
0.4 g of sodium is added to a solution of 91 g of tetraethylene glycol in 250 ml of tetrahydrofuran, and the mixture is stirred at room temperature. Once the sodium has dissolved, 145 ml of tert-butyl acrylate are added. The mixture is stirred for 12 h. The reaction solution is neutralized with ammonium chloride, concentrated, taken up in aqueous sodium chloride solution and extracted with ethyl acetate. The organic phase is concentrated. The residue is 39.
Workup
- stirringThe mixture is stirred for 12 h
- concentrationconcentrated
- extractionextracted with ethyl acetate
- concentrationThe organic phase is concentrated
Sources & evidence
- ORD record
- ord-582fe973b5b2440db0306c3105b9103d
- Source dataset
- uspto-grants-2002_12
- Patent number
- US06498156B2
Reaction notes
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