反応式
[CH2:1]([O:8][CH2:9][CH2:10][O:11][CH2:12][CH2:13][O:14][CH2:15][CH2:16][O:17][CH2:18][CH2:19][O:20][CH2:21][CH2:22][O:23][CH2:24][CH2:25][OH:26])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].S(O[CH2:40][CH2:41][O:42][CH2:43][CH2:44][O:45][CH2:46][CH2:47][O:48][CH3:49])(C1C=CC(C)=CC=1)(=O)=O>C1COCC1>[CH3:49][O:48][CH2:47][CH2:46][O:45][CH2:44][CH2:43][O:42][CH2:41][CH2:40][O:26][CH2:25][CH2:24][O:23][CH2:22][CH2:21][O:20][CH2:19][CH2:18][O:17][CH2:16][CH2:15][O:14][CH2:13][CH2:12][O:11][CH2:10][CH2:9][O:8][CH2:1][C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1参加物
実験手順
A solution of hexaethylene glycol monobenzyl ether from above (22.3 g) in anhydrous THF (100 ml) was added to a suspension of 50% NaH (3.5 g) in anhydrous THF (100 ml). The suspension was stirred at ambient temperature for 30 min and then a solution of triethylene glycol methyl tosyl ether from above (22.0 g) in THF (100 ml) was added dropwise. The mixture was refluxed under nitrogen overnight, cooled to ambient temperature, quenched with water (500 ml), and extracted with diethyl ether (3×300 ml). The ether extracts were combined, dried (sodium sulfate), and concentrated in vacuo to give nonaethylene glycol benzyl methyl ether as an oil (27 g, 88%), 1H-NMR (CDCl3) δ: 7.31 (m, 5, 5 phenyl CH), 4.54 (s, 2, benzyl CH2), 3.62-3.52 (m, 36, 18 CH2O), 3.35 (s, 3, CH3).
後処理
- temperatureThe mixture was refluxed under nitrogen overnight
- temperaturecooled to ambient temperature
- customquenched with water (500 ml)
- extractionextracted with diethyl ether (3×300 ml)
- dry with materialdried (sodium sulfate)
- concentrationconcentrated in vacuo
出典と根拠
- ORDレコード
- ord-c2f17f36ea7642cc97e5cca13ff6d85c
- 出典データセット
- uspto-grants-2002_03
- 特許番号
- US06355646B1
関連ノート
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