Benzamide → N-(4-bromobenzenesulfonyl)benzamide

HRID 1823109

反応式

HRID 1823109 の反応式
[C:1]([NH2:9])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+].[Br:12][C:13]1[CH:18]=[CH:17][C:16]([S:19](Cl)(=[O:21])=[O:20])=[CH:15][CH:14]=1>O1CCCC1.C(OCC)(=O)C.O>[C:1]([NH:9][S:19]([C:16]1[CH:17]=[CH:18][C:13]([Br:12])=[CH:14][CH:15]=1)(=[O:21])=[O:20])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

7

反応物 3

HCID 2331BenzamideHCID 7396p-Bromobenzenesulfonyl chlorideHCID 24758Sodium hydride

生成物 1

HCID 766162N-(4-bromobenzenesulfonyl)benzamide収率 52.7%

試薬・触媒・溶媒 3

HCID 962Water溶媒HCID 8028Tetrahydrofuran溶媒HCID 8857Ethyl Acetate溶媒

実験手順

To a solution of benzamide (1.42 g) in tetrahydrofuran (50 ml) were added sodium hydride (611 mg) and 4-bromobenzenesulfonyl chloride (3.0 g), and the mixture was stirred at room temperature for 3 hours. The mixture was diluted with ethyl acetate and water. The organic layer was separated, washed with brine, dried over magnesium sulfate and evaporated. The residue was purified by column chromatography on silica gel (hexane/ethyl acetate=2/1) to give N-benzoyl-4-bromobenzenesulfonamide (2.1 g) as a colorless powder.

後処理

  1. customThe organic layer was separated
  2. washwashed with brine
  3. dry with materialdried over magnesium sulfate
  4. customevaporated
  5. customThe residue was purified by column chromatography on silica gel (hexane/ethyl acetate=2/1)

出典と根拠

ORDレコード
ord-85d33e726aff4a14a934199ed9221887
出典データセット
uspto-grants-2006_05
特許番号
US07037938B2

関連ノート

読み込み中…