Dichloromethane → HCID 22032933, compound

HRID 2221211Notes

Reaction equation

HRID 2221211 reaction equation
[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][C:13](Br)=[CH:14][CH:15]=2)[CH:10]=[CH:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl:18][C:19]1[CH:20]=[C:21](B(O)O)[CH:22]=[CH:23][C:24]=1[F:25].ClCCl.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.O.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]>[CH2:1]([N:8]1[C:16]2[C:11](=[CH:12][C:13]([C:21]3[CH:22]=[CH:23][C:24]([F:25])=[C:19]([Cl:18])[CH:20]=3)=[CH:14][CH:15]=2)[CH:10]=[CH:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

8

Reactant 4

HCID 6344DichloromethaneHCID 11430Potassium CarbonateHCID 2857561-Benzyl-5-Bromo-1H-IndoleHCID 27346603-Chloro-4-fluorophenylboronic Acid (contains varying amounts of Anhydride)

Product 1

HCID 22032933HCID 22032933, compoundYield 41.2%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

1-Benzyl-5-(3-chloro-4-fluorophenyl)-1H-indole was prepared by coupling 1-benzyl-5-bromo-1H-indole (1.46 g, 5.10 mmol), and 3-chloro-4-fluorophenylboronic acid (1.08 g, 6.19 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II) complex with dichloromethane (1:1) (0.209 g, 0.256 mmol), potassium carbonate (1.44 g, 10.4 mmol) in dioxane (51 mL) and water (5 mL), following the procedure described in Step 1 of Example 11. Purification by flash chromatography (Biotage apparatus) using hexane as an eluant and drying 60° C. furnished the title compound as a light brown gum (0.706 g, 41%). 1HNMR (200 MHz, DMSO-d6) δ 7.8-7.9 (m, 2H), 7.6-7.7 (m, 1H), 7.4-7.6 (m, 3H), 7.15-7.4 (m, 6H), 6.55 (d, 1H, J=2.5 Hz), and 5.45 ppm (s, 2H).

Workup

  1. custom1-Benzyl-5-(3-chloro-4-fluorophenyl)-1H-indole was prepared
  2. customPurification by flash chromatography (Biotage apparatus)
  3. customdrying 60° C.

Sources & evidence

ORD record
ord-f6140383dab14d7e96a14136495ba2ea
Source dataset
uspto-grants-2008_05
Patent number
US07368471B2

Reaction notes

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