Dichloromethane → HCID 22032962, compound

HRID 2221214Notes

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.[F:18][C:19]([F:34])([F:33])[C:20]1[CH:21]=[C:22](B(O)O)[CH:23]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:25]=1.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:22]3[CH:23]=[C:24]([C:26]([F:29])([F:27])[F:28])[CH:25]=[C:20]([C:19]([F:18])([F:34])[F:33])[CH:21]=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

Conditions

Temperature: 85 °C

Procedure

1-Benzyl-5-[3,5-bis(trifluoromethyl)phenyl]-1H-indole was prepared by coupling 1-benzyl-5-bromo-1H-indole (1.44 g, 5.03 mmol), and 3,5-bis-(trifluoromethyl)phenylboronic acid (1.63 g, 6.32 mmol), using [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II) complex with dichloromethane (1:1) (0.211 g, 0.258 mmol), and potassium carbonate (1.38 g, 9.98 mmol) in dioxane (54 mL) and water (5.4 mL) following the procedure described in Step 1 of Example 11. The reaction mixture was heated to 85° C. for 3 hours. Purification by HPLC using 10% methylene chloride in hexane as the mobile phase furnished the title compound as a light yellow solid (1.08 g, 51%), mp: 90-95° C. 1HNMR (200 MHz, DMSO-d6): δ 8.3 (s, 2H), 8.1 (s, 1H), 8.0 (s, 1H), 7.6 (s, 3H), 7.15-7.4 (m, 5H), 6.6 (d, 1H, J=2.6 Hz), and 5.5 ppm (s, 2H).

Workup

custom1-Benzyl-5-[3,5-bis(trifluoromethyl)phenyl]-1H-indole was prepared
customPurification by HPLC

Sources & evidence

ORD record: ord-43235f81b6864d5cab5c090c9b4e2dac
Source dataset: uspto-grants-2008_05
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07368471B2

Reaction notes

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