Potassium Carbonate → Bis(2-methylpropyl) dicarbonate
反応式
Cl[C:2]([O:4][CH2:5][CH:6]([CH3:8])[CH3:7])=[O:3].[C:9](=[O:12])([O-:11])[O-:10].[K+].[K+]>C(#N)C>[C:2]([O:12][C:9]([O:11][CH2:5][CH:6]([CH3:8])[CH3:7])=[O:10])([O:4][CH2:5][CH:6]([CH3:8])[CH3:7])=[O:3]参加物
4
反応条件
- 温度
- 40 °C
実験手順
Isobutyl chloroformate (136.76 g, 1.0 mol.) was added dropwise to a stirred mixture of powered, anhydrous potassium carbonate (77 g, 0.56 mol) in acetonitrile at such a rate as to maintain a reaction temperature of 40° C. The reaction mixture was stirred for six (6) hours at ambient temperature and then allowed to stand overnight prior to work-up. The crude product was purified by vacuum distillation, and the fraction collected between 58° and 62° C. at 0.05-0.10 mmHg was found to be di-isobutyl dicarbonate. YIELD=86.93 g=80%.
後処理
- distillationThe crude product was purified by vacuum distillation
- customthe fraction collected between 58° and 62° C. at 0.05-0.10 mmHg
出典と根拠
- ORDレコード
- ord-0f73b8e265fb46ef97bb436d21bb0c9f
- 出典データセット
- uspto-grants-1994_01
- 特許番号
- US05281743
反応ノート
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