Dimethyl Sulfide → HCID 19046449、化合物
反応式
[C:1]([C:5]1[CH:11]=[CH:10][C:8]([NH2:9])=[C:7]([Cl:12])[CH:6]=1)([CH3:4])([CH3:3])[CH3:2].ClN1C(=O)CCC1=O.[CH3:21][S:22][CH3:23].C(N(CC)CC)C>ClCCl>[C:1]([C:5]1[CH:11]=[C:10]([CH2:21][S:22][CH3:23])[C:8]([NH2:9])=[C:7]([Cl:12])[CH:6]=1)([CH3:4])([CH3:2])[CH3:3]参加物
反応条件
- 温度
- -5 °C
実験手順
4-t-Butyl-2-chloroaniline (30 g) was dissolved in dichloromethane (1.21) and the solution was cooled to -5° C. N-chlorosuccinimide (21.7 g) was added portionwise to the vigorously stirred solution and stirring was continued for 1 h. Dimethyl sulfide (35 ml) was added to the solution (-5° C.) and stirring was continued for a further 1 h. The solution was then cooled to -65° C. and triethylamine (27 ml) was added. This solution was allowed to warm to room temperature overnight. The solution was evaporated to half volume, washed with sodium hydroxide (1N), water and brine successively. The organic solution was dried and evaporated and the residue was purified on silica using hexane to 3% ether in hexane as eluant. This afforded the product (31.2 g) as a red oil. 1H NMR (CDCl3, 250 MHz) δ 1.27 (9H, s, (CH3)3), 1.99 (3H, s, SCH3 ), 3.69 (2H, s, CH2SCH3), 4.38 (2H, br s, NH2), 6.92 (1H, d, J=2.0 Hz, ArH), 7.21 (1H, d, J=2.0 Hz, ArH). MS (CI+) m/z 244 (M+ +1, 100%).
後処理
- stirringstirring
- waitwas continued for a further 1 h
- temperatureThe solution was then cooled to -65° C.
- temperatureto warm to room temperature overnight
- customThe solution was evaporated to half volume
- washwashed with sodium hydroxide (1N), water and brine successively
- customThe organic solution was dried
- customevaporated
- customthe residue was purified on silica
出典と根拠
- ORDレコード
- ord-8ba57f399ec742878ffc403c0525a67b
- 出典データセット
- uspto-grants-1996_03
- 特許番号
- US05496833
反応ノート
読み込み中…