反応式
[Cl:1][S:2]([OH:5])(=[O:4])=[O:3].[CH3:6][O:7][C:8]1[CH:9]=[C:10]([CH3:16])[CH:11]=[CH:12][C:13]=1[O:14][CH3:15].Cl>C1C=CC=CC=1>[S:2]([Cl:1])([OH:5])(=[O:4])=[O:3].[CH3:16][C:10]1[CH:9]=[C:8]([O:7][CH3:6])[C:13]([O:14][CH3:15])=[CH:12][CH:11]=1参加物
5
実験手順
23.2 gm (0.2 mol) of chlorosulfonic acid were slowly added dropwise to 15.2 gm (0.1 mol) of 3,4-dimethoxy-toluene at about - 10° C., while stirring and cooling. Afterwards, the mixture was allowed to warm to room temperature, and was then stirred until the evolution of hydrogen chloride ceased. The reaction mixture was poured over ice, and the precipitated sulfochloride was extracted with ether. The organic phase was successively washed with sodium bicarbonate solution and water, and then evaporated to dryness in vacuo. A turbid oil was obtained as a residue, which solidified after cooling. Rf -value (benzene): 0.5.
後処理
- temperaturecooling
- additionThe reaction mixture was poured over ice
- extractionthe precipitated sulfochloride was extracted with ether
- washThe organic phase was successively washed with sodium bicarbonate solution and water
- customevaporated to dryness in vacuo
- customA turbid oil was obtained as a residue
- temperatureafter cooling
出典と根拠
- ORDレコード
- ord-8da7098edd54451688031f7be482a051
- 出典データセット
- uspto-grants-1977_07
- 特許番号
- US04038407
関連ノート
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