2-Chloroethyl methyl ether → 10-(2-Methoxyethoxy)-2,5,8,12,15,18-hexaoxanonadecane
Reaction equation
[OH-].[Na+].[CH3:3][O:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH:12]([OH:22])[CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][O:20][CH3:21].Cl[CH2:24][CH2:25][O:26][CH3:27]>>[CH3:3][O:4][CH2:5][CH2:6][O:7][CH2:8][CH2:9][O:10][CH2:11][CH:12]([O:22][CH2:24][CH2:25][O:26][CH3:27])[CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][O:20][CH3:21]Participants
4
Conditions
- Temperature
- 60 °C
Procedure
20.4 g (0.51 mol) of NaOH pellets were added to 100 g (0.34 mol) of 1,3-bis[2-(2-methoxyethoxy)ethoxy]-2-propanol resulting from Step 1. 48.2 g (0.51 mol) of 2-chloroethylmethylether was dropwise added in small portions while stirring at 60° C. After the completion of dropwise addition, the mixture was stirred for about 2 hours and a precipitated salt was filtered off, the filtrate was condensed and purified by a vacuum distillation to give 102 g of 1,3-bis[2-(2-methoxyethoxy)ethoxy]-2-(2-methoxyethoxy)propane (E) (yield: 85%). The distillation temperature was from 155 to 161° C./0.2 mmHg.
Workup
- additionAfter the completion of dropwise addition
- stirringthe mixture was stirred for about 2 hours
- filtrationa precipitated salt was filtered off
- customcondensed
- distillationpurified by a vacuum distillation
Sources & evidence
- ORD record
- ord-31af3664bd43479087ff6b8e76be7b0d
- Source dataset
- uspto-grants-2003_12
- Patent number
- US06656252B2
Reaction notes
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