反応式
[CH2:1]([O:7][C:8]1[CH:13]=[CH:12][C:11]([S:14]([N:17]([CH2:24][CH:25]([CH3:27])[CH3:26])[CH2:18][C:19](OCC)=[O:20])(=[O:16])=[O:15])=[CH:10][CH:9]=1)[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].Cl.[NH2:29][OH:30].C[O-].[Na+].[Na]>CO>[OH:30][NH:29][C:19](=[O:20])[CH2:18][N:17]([S:14]([C:11]1[CH:12]=[CH:13][C:8]([O:7][CH2:1][CH2:2][CH2:3][CH2:4][CH2:5][CH3:6])=[CH:9][CH:10]=1)(=[O:16])=[O:15])[CH2:24][CH:25]([CH3:27])[CH3:26]参加物
実験手順
Ethyl 2-[[4-hexyloxybenzenesulfonyl](isobutyl)amino]acetate (1.22 g, 3.05 mmol) is dissolved in methanol (15 mL). To this solution is added hydroxylamine hydrochloride (0.43 g, 6.11 mmol), followed by the addition of sodium methoxide, freshly prepared from sodium (0.35 g, 15.3 mmol) dissolved in methanol (5 mL). The reaction is stirred for 36 hours at room temperature. The reaction is worked up by partitioning between dilute hydrochloric acid (pH=~3) and ethyl acetate. The aqueous phase is extracted well with ethyl acetate, the combined organic layers are dried (Na2SO4), and the solvent is evaporated. The product is crystallized from hexane/ethyl acetate and collected by filtration to give N-hydroxy-2-[[4-hexyloxybenzenesulfonyl](isobutyl)-amino]acetamide, m.p. 108°-110° C.
後処理
- customby partitioning between dilute hydrochloric acid (pH=~3) and ethyl acetate
- extractionThe aqueous phase is extracted well with ethyl acetate
- dry with materialthe combined organic layers are dried (Na2SO4)
- customthe solvent is evaporated
- customThe product is crystallized from hexane/ethyl acetate
- filtrationcollected by filtration
出典と根拠
- ORDレコード
- ord-477f3476ce344ca290a646b1cb740e71
- 出典データセット
- uspto-grants-1996_09
- 特許番号
- US05552419
関連ノート
読み込み中…