Water → 6-chloro-5-[4-(2-hydroxyethyl)phenyl]-1H-indole-3-carbaldehyde

HRID 338393

反応式

HRID 338393 の反応式
[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([CH:6]=[CH:7][NH:8]2)=[CH:4][C:3]=1B1OCC(C)(C)CO1.[C:19](=O)([O-])[O-:20].[K+].[K+].Br[C:26]1[CH:31]=[CH:30][C:29]([CH2:32][CH2:33][OH:34])=[CH:28][CH:27]=1.O>O1CCOCC1.CN(C=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([CH:19]=[O:20])=[CH:7][NH:8]2)=[CH:4][C:3]=1[C:26]1[CH:31]=[CH:30][C:29]([CH2:32][CH2:33][OH:34])=[CH:28][CH:27]=1

参加物

8

反応物 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 728512-(4-Bromophenyl)ethanolHCID 866987336-chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole

生成物 1

HCID 866987366-chloro-5-[4-(2-hydroxyethyl)phenyl]-1H-indole-3-carbaldehyde収率 68%

試薬・触媒・溶媒 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)触媒HCID 6228Dimethylformamide溶媒HCID 312751,4-Dioxane溶媒

実験手順

A mixture of 6-chloro-5-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-1H-indole (260 mg, 1.00 mmol) and N,N-dimethylformiminium chloride (250 mg, 2.00 mmol) in dry 1,4-dioxane (5 mL) and DMF (1 mL) was sealed in a reaction vessel and stirred at room temperature for 10 minutes to give a white slurry. To the slurry was added 2M aqueous potassium carbonate (2.5 mL, 5.0 mmol), 2-(4-bromophenyl)ethanol (200 mg, 1.00 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (50 mg). The sealed vial was degassed and heated to 90° C. for 30 min. The cooled reaction mixture was poured into water (20 mL), and extracted with EtOAc (3×20 mL). The combined organic layers were dried and concentrated in vacuo to give 6-chloro-5-[4-(2-hydroxyethyl)phenyl]-1H-indole-3-carbaldehyde (180 mg, 68% yield) which was used in the next step without purification.

後処理

  1. customwas sealed in a reaction vessel
  2. customto give a white slurry
  3. customThe sealed vial was degassed
  4. temperatureheated to 90° C. for 30 min
  5. customThe cooled reaction mixture
  6. extractionextracted with EtOAc (3×20 mL)
  7. customThe combined organic layers were dried
  8. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-d1918eeaa34f425b8759f20ba0562afa
出典データセット
uspto-grants-2014_11
特許番号
US08889730B2

関連ノート

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