Potassium Carbonate → HCID 21964300, compound

HRID 2373470Notes

Reaction equation

HRID 2373470 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[N:7]([CH2:11][C:12]1[CH:17]=[CH:16][C:15]([CH3:18])=[CH:14][CH:13]=1)[C:6]([C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:5]2.[F:24][C:25]([F:37])([F:36])[O:26][C:27]1[CH:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1.C(=O)([O-])[O-].[K+].[K+]>O1CCOCC1.O.O>[CH3:18][C:15]1[CH:16]=[CH:17][C:12]([CH2:11][N:7]2[C:8]3[C:4](=[CH:3][C:2]([C:30]4[CH:29]=[CH:28][C:27]([O:26][C:25]([F:24])([F:36])[F:37])=[CH:32][CH:31]=4)=[CH:10][CH:9]=3)[CH:5]=[C:6]2[C:19]([O:21][CH2:22][CH3:23])=[O:20])=[CH:13][CH:14]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 27343864-(Trifluoromethoxy)phenylboronic acidHCID 21964305HCID 21964305, compound

Product 1

HCID 21964300HCID 21964300, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 218864351,4-Dioxane--water (1/1)Solvent

Conditions

Temperature
70 °C

Procedure

A mixture of ethyl 5-bromo-1-(4-methylbenzyl)-1H-indole-2-carboxylate (5.8 g, 15.54 mmol), 4-(trifluoromethoxy)phenylboronic acid (8.2 g, 38.85 mmol), potassium carbonate (5.4 g, 38.85 mmol), [1′1′-bis(diphenylphosphino)-ferrocene]dichloropalladium(II) complex with methylene (1:1) (4.41 g, 5.44 mmol) in dioxane-water (10:1, 154 mL) was stirred at 70° C. for two days. The reaction mixture was diluted with water and extracted with ethyl acetate. The organic extract was washed with water and brine, and then concentrated to an oil. This residue was crystallized from ethyl ether to afford the title compound as an off-white solid, m.p. 77-78° C. Mass spectrum (ESI, [M+H]+) m/z 454. 1H NMR (400 MHz, DMSO-d6) δ 8.00 (s, 1H), 7.78 (d, 2H, J=8.70 Hz), 7.67 (d, 1H, J=8.85 Hz), 7.61 (dd, 1H, J=8.70 and 1.68 Hz), 7.44 (s, 1H), 7.42-7.41 (m, 3H), 7.06 (d, 2H, J=7.94 Hz), 6.94 (d, 2H, J=8.09 Hz), 5.83 (s, 2H), 4.29 (q, 2H), 2.21 (s, 3H), and 1.30 ppm (t, 3H).

Workup

  1. extractionextracted with ethyl acetate
  2. extractionThe organic extract
  3. washwas washed with water and brine
  4. concentrationconcentrated to an oil
  5. customThis residue was crystallized from ethyl ether

Sources & evidence

ORD record
ord-4f242a76202948ed94e4013088faa1c6
Source dataset
uspto-grants-2008_12
Patent number
US07459478B2

Reaction notes

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