5-Chloro-4-nitrothiophene-2-sulfonamide → HCID 67218382、化合物
反応式
[Cl:1][C:2]1[S:6][C:5]([S:7]([NH2:10])(=[O:9])=[O:8])=[CH:4][C:3]=1[N+:11]([O-])=O>CO>[NH2:11][C:3]1[CH:4]=[C:5]([S:7]([NH2:10])(=[O:8])=[O:9])[S:6][C:2]=1[Cl:1]参加物
3
実験手順
Hydrogenation of a stirred solution of 5-chloro-4-nitro-thiophene-2-sulfonamide [CAS-No. 61714-46-3; commercially available] (1.13 g, 4.66 mmol) in methanol (140 ml) on Raney-Nickel (1.13 g) for 3 h at room temperature yielded after removal of the catalyst by filtration, evaporation and column chromatography on silica gel (ethyl acetate/hexane) the title compound as a light brown solid. MS (ISP) 211.0 [(M−H)−], mp 138° C.
後処理
- customafter removal of the catalyst
- filtrationby filtration, evaporation and column chromatography on silica gel (ethyl acetate/hexane) the title compound as a light brown solid
出典と根拠
- ORDレコード
- ord-2f97eb9ac61a45f791446533073f4ad6
- 出典データセット
- uspto-grants-2008_04
- 特許番号
- US07361659B2
反応ノート
読み込み中…