Methyl Methanesulfonate → HCID 19819114、化合物
反応式
Cl[CH2:2][CH2:3][N:4]=[C:5]=[O:6].[CH3:7][S:8]([O:11]C)(=[O:10])=[O:9]>CS([O-])(=O)=O.C([N+](CCCC)(CCCC)CCCC)CCC>[N:4]([CH2:3][CH2:2][O:11][S:8]([CH3:7])(=[O:10])=[O:9])=[C:5]=[O:6]参加物
4
反応条件
- 温度
- 120 °C
実験手順
20.0 g (0.06 mol) of tetrabutylammonium methanesulfonate are added to a solution of 36.0 g (0.34 mol) of 2-chloroisocyanatoethane and 93.3 g (0.85 mol) of methyl methanesulfonate and the mixture is heated at 120° C for 6 hours. It is distilled in a thin layer evaporator at 180° C. under a pressure of 0.04 mbar and the crude product is purified by distillation. 18.0 g (0.17 mol) of 2chloroisocyanatoethane and 71.0 g (0.65 mol) of methyl methanesulfonate are recovered in this way.
後処理
- distillationIt is distilled in a thin layer evaporator at 180° C. under a pressure of 0.04 mbar
- distillationthe crude product is purified by distillation
出典と根拠
- ORDレコード
- ord-d433e79b626e43a59a3c9c476aee80f4
- 出典データセット
- uspto-grants-1992_05
- 特許番号
- US05110975
反応ノート
読み込み中…