Benzenesulfonyl chloride → 1-(Phenylsulfonyl)-3-indolecarboxaldehyde

HRID 522589

反応式

HRID 522589 の反応式
[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]([CH:10]=[O:11])=[CH:2]1.[OH-].[K+].[C:14]1([S:20](Cl)(=[O:22])=[O:21])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>C(O)C>[C:14]1([S:20]([N:1]2[C:9]3[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=3)[C:3]([CH:10]=[O:11])=[CH:2]2)(=[O:22])=[O:21])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

参加物

5

反応物 3

HCID 7369Benzenesulfonyl chlorideHCID 10256Indole-3-CarboxaldehydeHCID 14797Potassium Hydroxide

生成物 1

HCID 3633341-(Phenylsulfonyl)-3-indolecarboxaldehyde収率 33%

試薬・触媒・溶媒 1

HCID 702Ethanol溶媒

実験手順

To a solution of indole 3-carboxaldehyde (8y) (100 mmol) in ethanol (500 mL) at RT was added potassium hydroxide (1.1 equiv). The mixture was stirred until total solubilization. The ethanol was completely removed in vacuum and the residual was dissolved in acetone (250 mL) followed by adding benzenesulfonyl chloride (1.1 equiv, 110 mmol). The reaction mixture was stirred for half hour. The precipitate was filtered off and the filtrate was concentrated and recrystallized from methanol to give a white solid. Yield: 33%. 1H NMR (500 MHz, CDCl3) δ 10.17 (s, 1H), 8.25-8.39 (m, 2H), 7.97-8.09 (m, 3H), 7.69 (t, J=7.33 Hz, 1H), 7.59 (t, J=7.5 Hz, 2H), 7.39-7.54 (m, 2H). MS (ESI) calcd for C15H11NO3S 285.1. Found 286.0 [M+H]+.

後処理

  1. customThe ethanol was completely removed in vacuum
  2. dissolutionthe residual was dissolved in acetone (250 mL)
  3. stirringThe reaction mixture was stirred for half hour
  4. filtrationThe precipitate was filtered off
  5. concentrationthe filtrate was concentrated
  6. customrecrystallized from methanol
  7. customto give a white solid

出典と根拠

ORDレコード
ord-b3baf7e1a78044428172788db1013774
出典データセット
uspto-grants-2016_05
特許番号
US09334242B2

関連ノート

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