Potassium Carbonate → HCID 67223256, compound

HRID 500247Notes

Reaction equation

HRID 500247 reaction equation
C(=O)([O-])[O-].[K+].[K+].Br[C:8]1[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[C:10]([Cl:18])[CH:9]=1.CC1(C)C(C)(C)OB([C:27]2[CH:28]=[N:29][C:30]([NH2:33])=[N:31][CH:32]=2)O1>O.C1(C)C=CC=CC=1.C(O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[NH2:33][C:30]1[N:31]=[CH:32][C:27]([C:8]2[CH:17]=[CH:16][C:11]([C:12]([O:14][CH3:15])=[O:13])=[C:10]([Cl:18])[CH:9]=2)=[CH:28][N:29]=1

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 177502122-Aminopyrimidine-5-boronic acid, pinacol esterHCID 22058730Methyl 4-Bromo-2-chlorobenzoate

Product 1

HCID 67223256HCID 67223256, compoundYield 59.6%

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 702EthanolSolventHCID 962WaterSolventHCID 1140TolueneSolvent

Conditions

Temperature
120 °C

Procedure

A solution of potassium carbonate (0.39 g, 2.8 mmol) in water (3 mL) was added to a mixture of methyl 4-bromo-2-chlorobenzoate (0.49 g, 2.0 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-amine (0.31 g, 1.4 mmol), and tetrakis(triphenylphosphine)palladium (0.08 g, 0.07 mmol) in toluene (5.3 mL) and ethanol (3 mL). The resulting mixture was heated at 120° C. for 15 min. The reaction mixture was extracted with EtOAc (3×20 mL). The combined organic layers were washed with brine, dried over anhydrous Na2SO4, filtered, and concentrated. The residue was recrystallized from methanol and ether. The precipitate was collected by filtration, and washed with ether to afford the desired product (0.22 g, 59%). LCMS: (M+H)=264.0/266.0.

Workup

  1. extractionThe reaction mixture was extracted with EtOAc (3×20 mL)
  2. washThe combined organic layers were washed with brine
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe residue was recrystallized from methanol and ether
  7. filtrationThe precipitate was collected by filtration
  8. washwashed with ether

Sources & evidence

ORD record
ord-3f95e675aef644608b16bfc5a6ecbeba
Source dataset
uspto-grants-2010_08
Patent number
US07767675B2

Reaction notes

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