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Potassium Hydroxide → 7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indole-3-carboxylic acid

HRID 1512801
ノート
印刷プレビュー

反応式

HRID 1512801 の反応式
[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[CH:27]=[O:28])[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:11])[CH3:10].[O-:29][Mn](=O)(=O)=O.[K+].[OH-].[K+]>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]([C:12]2[O:16][N:15]=[C:14]([C:17]3[CH:18]=[CH:19][CH:20]=[C:21]4[C:25]=3[N:24]([CH3:26])[CH:23]=[C:22]4[C:27]([OH:29])=[O:28])[N:13]=2)[CH:5]=[CH:6][C:7]=1[O:8][CH:9]([CH3:10])[CH3:11]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 14797Potassium HydroxideHCID 516875Potassium PermanganateHCID 591461277-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indole-3-carbaldehyde

生成物 1

HCID 591460907-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indole-3-carboxylic acid収率 89.2%

試薬・触媒・溶媒 1

HCID 8028
Tetrahydrofuran
溶媒
2 回

反応条件

温度
55 °C

実験手順

To a solution of 7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indole-3-carbaldehyde (D61) (1.4 g) in THF (20 mL) was added KMnO4 (1.1 g) and aqueous KOH (10 mL). The reaction mixture was stirred at 55° C. overnight. After cooled to room temperature, the mixture was diluted with THF (30 mL), and filtered. The filtrate was concentrated and the aqueous suspension was acidified with aqueous HCl (2 M) to pH 5-6. The resulting white solid was collected, washed with water, dried in vacuo to give the crude compound, which was purified by column chromatography (10% ethyl acetate in hexane) to afford 7-(5-{3-chloro-4-[(1-methylethyl)oxy]phenyl}-1,2,4-oxadiazol-3-yl)-1-methyl-1H-indole-3-carboxylic acid (D95) as a white solid (1.3 g). δH (DMSO-d6, 400 MHz): 1.36 (6H, d), 3.74 (3H, s), 4.88 (1H, m), 7.35 (1H, dd), 7.45 (1H, d), 7.53 (1H, dd), 8.12 (1H, d), 8.14 (1H, d), 8.20 (1H, d), 8.32 (1H, dd), 12.15 (1H, s). MS (ES): C21H18ClN3O4 requires 411. found 412.1 (M+H+).

後処理

  1. temperatureAfter cooled to room temperature
  2. filtrationfiltered
  3. concentrationThe filtrate was concentrated
  4. customThe resulting white solid was collected
  5. washwashed with water
  6. customdried in vacuo
  7. customto give the crude compound, which
  8. customwas purified by column chromatography (10% ethyl acetate in hexane)

出典と根拠

ORDレコード
ord-4d015fc173af4842a024b3842924d05d
出典データセット
uspto-grants-2012_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08217028B2

反応ノート

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