関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Methylamine | HCID 6329 | — |
| 反応物 | p-Bromobenzenesulfonyl chloride | HCID 7396 | — |
| 反応物 | Sodium Bicarbonate | HCID 516892 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | 4-bromo-N-methylbenzene-1-sulfonamide | HCID 101215 | 96.8% |
反応手順
To a mixture of sat aq. NaHCO3 (42 g, 0.5 mol), CH2Cl2 (400 mL) and methylamine (51.7 g, 0.5 mol, 30% in methanol) was added a solution of 4-bromo-benzenesulfonyl chloride (127 g, 0.5 mol) in CH2Cl2 (100 mL). The reaction was stirred at 20° C. overnight. The organic phase was separated and dried over Na2SO4. Evaporation of the solvent under reduced pressure provided the 4-bromo-N-methyl-benzenesulfonamide (121 g, crude), which was used in the next step without further purification. 1H NMR (CDCl3, 300 MHz) δ 7.64-7.74 (m, 4H), 4.62-4.78 (m, 1H), 2.65 (d, J=5.4 Hz, 3H).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US07741321B2 |
|---|
| 出典データセット | uspto-grants-2010_06 |
|---|
| ORD ID | ord-4ec898c1322241d9be83408d210eacfd |
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| 出典メモ | uspto-grants-2010_06 |
|---|
