Potassium Hydroxide → 1-Hydroxy-1-(perfluoroethyl)-2,3,4,9-tetrahydro-1H-carbazole-6-carbonitrile

HRID 877462ノート

反応式

HRID 877462 の反応式
[F:1][C:2]([F:37])([C:7]1([O:32][Si](C)(C)C)[C:19]2[N:18](S(C3C=CC(C)=CC=3)(=O)=O)[C:17]3[C:12](=[CH:13][C:14]([C:30]#[N:31])=[CH:15][CH:16]=3)[C:11]=2[CH2:10][CH2:9][CH2:8]1)[C:3]([F:6])([F:5])[F:4].[OH-].[K+]>C1COCC1.O>[OH:32][C:7]1([C:2]([F:37])([F:1])[C:3]([F:4])([F:5])[F:6])[C:19]2[NH:18][C:17]3[C:12](=[CH:13][C:14]([C:30]#[N:31])=[CH:15][CH:16]=3)[C:11]=2[CH2:10][CH2:9][CH2:8]1

参加物

5

反応物 2

HCID 14797Potassium HydroxideHCID 86676823HCID 86676823、化合物

生成物 1

HCID 529475461-Hydroxy-1-(perfluoroethyl)-2,3,4,9-tetrahydro-1H-carbazole-6-carbonitrile収率 40.4%

試薬・触媒・溶媒 2

HCID 962Water溶媒2 回HCID 8028Tetrahydrofuran溶媒

実験手順

To a solution of 1-(perfluoroethyl)-9-tosyl-1-(trimethylsilyloxy)-2,3,4,9-tetrahydro-1H-carbazole-6-carbonitrile (180 mg, 0.3 mmol) in THF (5 mL), KOH (90 mg, 1.6 mmol) in H2O (1 mL) was added. The reaction mixture was refluxed for 20 h, diluted with water and extracted with EtOAc (3×20 mL). The combined organic extracts were dried over Na2SO4 and concentrated under reduced pressure to give the crude residue which was purified by column chromatography [EtOAc-hexane (1:19) as eluant] to afford the title compound as a white solid (40 mg, 40%). 1H NMR (500 MHz, CDCl3, δ in ppm) 8.5 (bs, 1H), 7.9 (s, 1H), 7.49 (d, J=7.5 Hz, 1H), 7.44 (d, J=7.5 Hz, 1H), 2.90-2.86 (m, 1H), 2.74-2.56 (m, 1H), 2.56 (s, 1H), 2.33-2.29 (m, 1H), 2.20-2.12 (m, 2H), 2.04-2.03 (m, 1H).

後処理

  1. temperatureThe reaction mixture was refluxed for 20 h
  2. extractionextracted with EtOAc (3×20 mL)
  3. dry with materialThe combined organic extracts were dried over Na2SO4
  4. concentrationconcentrated under reduced pressure
  5. customto give the crude residue which
  6. customwas purified by column chromatography [EtOAc-hexane (1:19) as eluant]

出典と根拠

ORDレコード
ord-df864dabd347437f95b14a08aff6b950
出典データセット
uspto-grants-2015_03
特許番号
US08987319B2

反応ノート

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