Sodium Carbonate → HCID 89158091, compound

HRID 1409299Notes

Reaction equation

HRID 1409299 reaction equation
Br[C:2]1[CH:8]=[C:7]([F:9])[C:5]([NH2:6])=[C:4]([Cl:10])[C:3]=1[F:11].[O:12]1[CH2:17][CH2:16][CH2:15][CH2:14][CH:13]1[N:18]1[C:22](B2OC(C)(C)C(C)(C)O2)=[CH:21][CH:20]=[N:19]1.C(=O)([O-])[O-].[Na+].[Na+]>COCCOC.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Cl:10][C:4]1[C:3]([F:11])=[C:2]([C:22]2[N:18]([CH:13]3[CH2:14][CH2:15][CH2:16][CH2:17][O:12]3)[N:19]=[CH:20][CH:21]=2)[CH:8]=[C:7]([F:9])[C:5]=1[NH2:6]

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 115872081-(tetrahydro-2H-pyran-2-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 86714618HCID 86714618, compound

Product 1

HCID 89158091HCID 89158091, compoundYield 49.9%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
80 °C

Procedure

4-Bromo-2-chloro-3,6-difluoroaniline (12.37 mmol, 3 g) and 1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-5-boronic acid pinacol ester (12.37 mmol, 3.44 g) were dissolved in DME. Bis(triphenylphosphine)palladium(II) chloride (0.619 mmol, 0.434 g) and sodium carbonate, 2 M solution (12.37 mmol, 1.311 g) were added. The reaction mixture was refluxed at 80° C. for 4 h and the stirring was continued at 50° C. overnight. The solvent was evaporated and the residue was extracted three times with EtOAc. The combined organics were washed with water and brine. The organics were dried, filtered and evaporated. The crude product was purified by flash chromatography. 1.935 g of the title compound was obtained. 1H-NMR (400 MHz, MeOH-d4): δ 1.49-1.79 (m, 2H), 1.80-1.88 (m, 1H), 1.93-2.19 (m, 2H), 2.33-2.47 (m, 1H), 3.47-3.77 (m, 1H), 3.96-4.07 (m, 1H), 5.09-5.43 (m, 1H), 6.30-6.39 (m, 1H), 7.04-7.13 (m, 1H), 7.50-7.63 (m, 1H).

Workup

  1. customThe solvent was evaporated
  2. extractionthe residue was extracted three times with EtOAc
  3. washThe combined organics were washed with water and brine
  4. customThe organics were dried
  5. filtrationfiltered
  6. customevaporated
  7. customThe crude product was purified by flash chromatography

Sources & evidence

ORD record
ord-cf206162a63e4210a88e8448aa9bf5b3
Source dataset
uspto-grants-2014_12
Patent number
US08921378B2

Reaction notes

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