Potassium Carbonate → HCID 86698602, compound

HRID 338255Notes

Reaction equation

HRID 338255 reaction equation
Br[C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][C:10]=1[Cl:11])[NH:7][CH:6]=[C:5]2[CH:12]=[O:13].CC1(C)COB([C:21]2[CH:26]=[CH:25][C:24]([C:27]3([OH:31])[CH2:30][CH2:29][CH2:28]3)=[CH:23][C:22]=2[F:32])OC1.C(=O)([O-])[O-].[K+].[K+]>C(O)C.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]>[Cl:11][C:10]1[CH:9]=[C:8]2[C:4]([C:5]([CH:12]=[O:13])=[CH:6][NH:7]2)=[CH:3][C:2]=1[C:21]1[CH:26]=[CH:25][C:24]([C:27]2([OH:31])[CH2:28][CH2:29][CH2:30]2)=[CH:23][C:22]=1[F:32]

Participants

7

Reactant 3

HCID 11430Potassium CarbonateHCID 866985665-bromo-6-chloro-1H-indole-3-carbaldehydeHCID 866986011-[4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)-3-fluorophenyl]cyclobutanol

Product 1

HCID 86698602HCID 86698602, compoundYield 58%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 702EthanolSolventHCID 962WaterSolvent

Conditions

Temperature
130 °C

Procedure

A suspension of 5-bromo-6-chloro-1H-indole-3-carbaldehyde (150 mg, 0.44 mmol), 1-[4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-3-fluorophenyl]cyclobutanol (181 mg, 0.652 mmol), 2M aqueous potassium carbonate (0.87 mL, 1.74 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (18 mg, 0.022 mmol) in ethanol (4 mL) was sealed in a reaction vessel and heated thermally to 130° C. for 3 hours. The reaction mixture was diluted with water (10 mL) and extracted with ethyl acetate (3×10 mL). The combined organic layers were washed with brine and dried over sodium sulfate, filtered and concentrated in vacuo. The crude product was purified using flash chromatography eluting with heptanes/ethyl acetate (0:100 to 60:40) to give the title compound (57 mg, 58%). 1H NMR (500 MHz, DMSO-d6) δ 12.18-12.38 (m, 1H), 9.95 (s, 1H), 8.40 (s, 1H), 8.04 (s, 1H), 7.73 (s, 1H), 7.34-7.50 (m, 3H), 5.68 (s, 1H), 2.40-2.47 (m, 2H), 2.21-2.38 (m, 2H), 1.90-1.99 (m, 1H), 1.68-1.81 (m, 1H).

Workup

  1. customwas sealed in a reaction vessel
  2. extractionextracted with ethyl acetate (3×10 mL)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over sodium sulfate
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified
  8. washeluting with heptanes/ethyl acetate (0:100 to 60:40)

Sources & evidence

ORD record
ord-cb7b93dc694c416580d69f0d2ae9ea36
Source dataset
uspto-grants-2014_11
Patent number
US08889730B2

Reaction notes

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